316results about How to "Solve aging" patented technology

The invention discloses a UAV (Unmanned Aerial Vehicle) catapult-assisted take-off device, belonging to the technical field of lightweight aviation aircrafts. According to the device, high-pressure gas is adopted as a power source, and an air cylinder-pulley block type catapult propulsion manner is adopted, so that the traction force is large and is convenient to adjust; pulley blocks can be used for amplifying traction speed of an air cylinder in a multiplied manner, so that UAVs can obtain relatively high launching speed, and meanwhile, the length of a sliding rail is reduced; the launch angle of the UAV catapult-assisted take-off device is adjusted through two groups of worm gear-worm structures, and the adjustment on pitch angle and left-and-right deflection angle can be completed simultaneously, so that the adjustment of UAV launch angle is more flexible, and UAV launching is more accurate; the UAV catapult-assisted take-off device is simple in structure, easy in manufacturing, convenient in assembling and mounting and convenient in transportation; the device is good in structural stiffness, high in reliability and long in service life, the UAV catapult-assisted take-off device is used for launching the UAVs through being fixedly mounted on a platform or mounted on a launch vehicle, and thus, the application is more extensive.

The invention discloses a hexanoic acid bacterium and liquid pig mud bacterium mixed bacterial solution culture method, which comprises: culturing hexanoic acid bacteria in a hexanoic acid bacterium culture medium and liquid pig mud bacteria in a liquid pig mud culture medium separately; inoculating 1 percent of hexanoic acid bacterium strain and 9 percent of liquid pig mud bacterium strain into a Carlsberg flask, a stainless stain seed tank and a stainless stain fermentation tank in turn; and thus, obtaining the hexanoic acid bacterium and liquid pig mud bacterium mixed bacterial solution. The hexanoic acid bacterium and liquid pig mud bacterium mixed bacterial solution prepared by the method, when used for maintaining pig mud and culturing artificial pig mud, can solve the problem that the artificial addition of calcium matters into the pig mud promotes the aging of the pig mud and the problem of complex operation, low and instable quality in tank-type culture and also solve the problem of undesirable use effect of hexanoic acid bacteria and liquid pig mud bacteria, which are used alone.

The invention discloses alkali-activated slag powder geopolymer mortar for structure reinforcement and a preparation method thereof. The alkali-activated slag powder geopolymer mortar for structure reinforcement is prepared from, by weight, 150-210 parts of slag powder, 0-60 parts of fly ash, 400-700 parts of sand, 190-240 parts of water glass and 25-50 parts of solid sodium hydroxide. The preparation method comprises the following steps that the slag powder, the fly ash and the sand are mixed to be uniform according to the proportions; solid sodium hydroxide particles are dissolved in the corresponding amount of the water glass according to the proportion; sodium hydroxide-dissolved water glass is added into well-mixed dry materials, and stirring is conducted continuously to be uniform; the well-stirred alkali-activated slag powder geopolymer mortar is used for building structure reinforcement; the alkali-activated slag powder geopolymer mortar has high compressive strength, good adhesive property with concrete and fiber cloth materials and a wide fluidity range and can adapt to the situation of reinforcing building structures through a fiber cloth bonding method or a grouting pouring method.

The invention provides a cable group cable core transient temperature calculation method based on a finite element method. The method includes the steps of firstly, checking the cable group laying condition, secondly, measuring relevant parameters of cables, thirdly, building a model for a cable group according to measured data, fourthly, dividing the cable model, fifthly, reading currents and determining alternating current resistance and thermal loads, sixthly, conducting simultaneous solution on all division units, and seventhly, repeatedly executing the fifth step and the sixth step, and repeatedly conducting iteration to get a cable core transient temperature. The cable group cable core transient temperature calculation method plays a significant role in solving the problem of cable core temperature when multiple cables are used at the same time under a complex laying condition, real-time temperature of cable cores can be accurately calculated, and judgment of the real-time operating state of cables can be facilitated.

The invention discloses a sewage treatment process and a special-purpose one-piece sewage treatment plant. The process comprises the following steps: 1) arrangement of a water inlet system: sewage input from an inlet pipe and pretreated by thick and fine gratings and a vortex-type grit chamber is sent into a biological reaction system; 2) arrangement of the biological reaction system: the biological reaction system is divided into an anoxic area, an anaerobic area, an aerobic area and a sedimentation area, and activated sludge in each area utilizes katabolism of microbes to converse organic matters into inorganic matters to realize nitrogen and phosphorus removal; 3) arrangement of the sedimentation basin: sludge and water in the treated sewage can be separated, so that the water outlet is clarified; and 4) arrangement of a disinfection tank: the treated water from the step 3) is disinfected to kill pathogenic organisms and then discharged through an outlet pipe. The invention also discloses a one-piece sewage treatment plant. The invention has the advantages of small land occupation, small investment, compact mechanism, low loss of a water head, low investment for the engineering project, optimized, stable and mature technology, good nitrogen and phosphorus removal effect and good organic pollutant removal effect.

The invention discloses a device applied to paralleled current sharing of a programmable DC power module and a paralleled current sharing method thereof. The paralleled current sharing method is based on the device applied to paralleled current sharing of the programmable DC power module. The device comprises a plurality of power modules which are connected in parallel and have the same specification and characteristic, a sampling circuit and a CPU (Central Processing Unit) processing circuit; the sampling circuit detects output voltages and current parameters of each power module in real time and transmits the output voltages and current parameters to the CPU processing circuit, after the output voltage and current parameters are processed by a CPU processor of the CPU processing circuit, a drive signal is output, so that the output of each power module circuit is controlled, and each power module outputs a balanced current finally. The device has the advantages of programmability, flexible control and strong universality, the hardware circuit can be simplified, the problems caused by component aging and temperature excursion of analog control are solved, the capacity of resisting disturbance is enhanced, and the reliability of the control system is improved.

The invention discloses an active and passive compound control system for a hybrid power hydraulic excavator. According to the active and passive compound control system for the hybrid power hydraulic excavator, a control circuit comprises a hydraulic pump A, a hydraulic pump B, a hydraulic pump C, a movable arm cylinder control valve bank, a bucket rod cylinder control valve bank, a bucket control valve, a rotation control valve, a rotating motor control valve bank, a two-position and two-way valve I, a two-position and two-way valve II, a two-position and two-way valve III, a two-position and two-way valve IV, a two-position and two-way valve V, a two-position and two-way valve VI, a two-position and two-way valve VII, a two-position and three-way valve I, a two-position and three-way valve II, an energy accumulator I and an energy accumulator II, an open type control circuit is adopted to serve as the control circuit, the two cavities of a hydraulic cylinder are each controlled through a power source, and the pressure and the flow of each cavity are regulated independently. The active and passive compound control system for the hybrid power hydraulic excavator has the multiple technical advantages that the energy efficiency is high, the degree of integration is high, power consumption is low, power supply redundancy is avoided, a pilot oil source is not needed, the noise is low, and kinetic energy recovery and potential energy recovery are integrated.

The invention relates to a composite phosphor luminescent glass and a preparation method for the same. The ingredients of the composite phosphor luminescent glass is ~~~ glass powder and phosphor, wherein the ~~glass powder accounts for 80-95% by mass, and the phosphor accounts for 5-20% by mass. The preparation method for the composite phosphor ~~ luminescent glass comprises a first step of preparing ~~glass by using high temperature fusion technique, and a second step of mixing the glass powder and the phosphor uniformly for sintering to obtain the composite phosphor luminescent glass. The composite phosphor luminescent glass of the invention has good luminescent properties, and is mainly used to solve the problems that the phosphor is easily dampened during the use of LED devices, and resin is prone to aging during the packaging of the LED devices.

The invention relates to a purple sweet potato beverage which is prepared from the following raw materials in parts by weight: 10-70 parts of fresh purple sweet potato, 10-80 parts of water, 0.5-1.5 parts of stabilizer and 0-5 parts of sweetener. The beverage is prepared by the following method: pre-boiling the fresh purple sweet potato and fishing out; mixing the pre-boiled purple sweet potato with water and slurrying with a colloid mill; adding high temperature resistant alpha-amylase into the obtained slurry for enzymolysis; filtering the slurry after enzyme deactivation to obtain filtrate; adding the stabilizer, sweetener and the balance of water into the filtrate; and mixing uniformly, then homogenizing, degassing, filling and sterilizing to obtain the finished product. The obtained purple sweet potato beverage is purplish red turbid liquid without precipitation, has a thick purple sweet potato taste and pure mouthfeel, and maintains the original nutrient components of purple sweet potato to the greatest degree; and after long-time drinking, the purple sweet potato beverage can supplement various mineral elements necessary to human body, eliminate body fatigue and improve immunity, and has a relatively good caner resisting and preventing effect, thereby being an excellent anti-aging healthcare beverage.

The invention discloses a building talkback method, device and system, relates to the technical field of communication, can realize a building talkback function through an intelligent terminal and a mobile internet, and solves the problems of existing equipment lines, equipment aging, construction difficulty, high purchase and popularization cost and the like. The method comprises the following steps: a client acquires an address identifier configured at a public entrance guard scanned by a visitor terminal and position information of the visitor terminal; a visitor access request carrying theaddress identifier and the position information is sent to a server, so that the server initiates a call to a resident terminal associated with the address identifier after judging that the visitor terminal meets a predetermined access condition according to the position information; And dialogue communication between the visitor terminal and the resident terminal is achieved through dialogue connection established between the visitor terminal and the resident terminal by the server. The building talkback system is suitable for building intercom.

The invention relates to essence containing snail mucus extracts. A recipe of the essence comprises the following raw material ingredients in percentage by weight: 1 percent to 4.0 percent of snail slime extracts, 1 percent to 4.0 percent of centella extracts, 2.5 percent to 7 percent of humectants, 1.1 percent to 2.2 percent of thickening agents, 0.01 percent to 0.15 percent of neutralizing agents and the balance de-ionized water. The essence has the advantages that the efficient scar restoration capability can be shown under the condition of low concentration of skin restoration active ingredients in the essence; the wound heeling is accelerated; the skin elasticity improving function and the skin energy improving function are added; the essence can be widely used for the restoration of easy-allergy skin, beatified skin, skin with pimples or injured skin caused by other reasons.

The invention provides an objective table partition temperature control system for 3D printing. The objective table partition temperature control system comprises an upper computer, a control circuit and a partition-type objective table. After the upper computer reads user file information, working partitions can be automatically or manually distributed according to the size and position of an object needing to be printed in a file, temperature detection and control over the corresponding partition are started, and multi-partition distribution and temperature control can also be achieved under the situation that a plurality of components are printed at the same time. The control circuit can identify instructions of the upper computer, complete temperature detection and control over the partitions, and upload data to the upper computer. The partition-type objective table is composed of a plurality of temperature control units. Each temperature control unit comprises an independent temperature probe and a heater. Compared with an existing objective table temperature control system, the objective table partition temperature control system has the advantages that the corresponding temperature control partitions can be automatically or manually started according to the sizes and the positions of the printed components, the heating speed is high, energy consumption is low, safety is high, and precision of temperature control is high.

The invention provides a resonant mobile phone wireless charging system. According to the invention, an E class power amplification module carries out power amplification on a high frequency signal produced by a signal producing module; the high frequency signal after power amplification is transmitted to an emission coil; the emission coil and a receiving coil carry out resonance, thus the signal is transmitted to the receiving coil; a rectification module rectifies received high frequency alternating current from the receiving coil, and carries out filtering voltage stabilizing to acquire a direct current power supply; and a charging control module carries out intelligent charging management on a rechargeable battery, and charges a mobile phone. According to the invention, the problems that a charging interface is prone to aging or bad contact and the like are well solved, and a convenient, safe and flexible life style is provided for people.

The invention relates to a hybrid power engineering machine multi-actuator control system which comprises a double-pump double-loop hydraulic control system. A backpressure adjusting unit, a first conversion control valve, a second conversion control valve, a third conversion control valve, a fourth conversion control valve, a fifth conversion control valve, a sixth conversion control valve and a hydraulic control one-way valve set. According to the hybrid power engineering machine multi-actuator control system, a hybrid power system is additionally arranged, recycling of movable arm potential energy and rotation braking kinetic energy is achieved, integrated control over energy recycling and load difference throttling loss eliminating is achieved, shortcomings in the prior art are effectively eliminated, and the beneficial effects of high energy efficiency, low emission and the like are achieved.

The invention discloses a transformer sound insulation shell material and a preparation method thereof, which belong to the field of materials and solve the problem of poor sound insulation effect of existing materials. The preparation method specifically comprises the following steps of adding bakelite, epoxy resin, glass fibers, chemigum, polyvinyl chloride resin, cenosphere, expanded vermiculite, calcium carbonate, diatomaceous earth, silicone oil and antioxygen into a container, stirring for 15 to 20 minutes at the rotating speed of 1600 to 1900 r / min, uniformly mixing, then adding dichloromethane, continuously stirring for 5 to 10 minutes, adding acetic acid at last, stirring for 5 to 10 minutes at the rotating speed of 2000 to 2200 r / min, pouring raw materials which are uniformly mixed into a mold, solidifying for 60 to 80 minutes at the temperature of 65 to 75 DEG C, cooling and demolding, so as to obtain the transformer sound insulation shell material. The preparation method has the advantages of simplicity, easiness in operation and low production cost and can be widely used for transformer shell and case materials.

A health-care collagen capsule for moistening and nourishing skin and removing spots from skin contains freeze dried collagen powder, elastin and precyanidin.

The invention discloses an intelligent mosquito killer which is improved. The intelligent mosquito killer comprises a body, the body is provided with a mosquito suction opening, a draught fan, an electric mosquito net, a controller and a mosquito-lured lamp, the draught fan is located behind the mosquito suction opening, the electric mosquito net is located between the mosquito suction opening and the draught fan, and the mosquito-lured lamp is arranged in the mosquito suction opening. The intelligent mosquito killer is characterized in that a body temperature inductor used for detecting the body temperature of mosquitoes is arranged at the front end of the mosquito suction opening, the body temperature inductor is electrically connected with the controller, and only when mosquitoes pass through the mosquito suction opening, can the electric mosquito net and the draught fan be started. The intelligent mosquito killer has the advantages of being low in energy consumption, convenient to use and durable.

The invention discloses a vehicle and a pull rod type suspension device thereof. The pull rod type suspension device comprises a bush assembly, a connecting rod and a transmission mount bracket, wherein the bush assembly comprises an inner core, a rubber part and an outer tube, the inner core is arranged inside the outer pipe, the rubber part is arranged between the outer pipe and the inner core, the side wall of the outer pipe is provided with a first through hole, and the position on the rubber part, which corresponds to the first opening, is provided with a second through opening; one end of the connecting rod penetrates the first opening of the outer pipe and the second opening of the rubber part to be connected with the inner core, and the connecting rod can swing between two opposite side walls relative to the first opening of the outer pipe; the transmission mount bracket is connected with the other end of the connecting rod. The pull rod type suspension device limits torsional displacement of a power assembly of a vehicle through connection of the connecting rod and the inner core and forming of the first opening for limiting movement of the connecting rod on the outer pipe, and solves the problems of aging inclination and reduction of fatigue durability of the bush assembly.

The invention discloses an anti-allergic dendrobium facial mask liquid preparation technology. The anti-allergic dendrobium facial mask liquid preparation technology includes the steps of (1), uniformly mixing deionized water, allantoin, glycerol, butylene glycol, sodium polyacrylate, acrylic esters and xanthan gum, disposing the mixture in a main pot, heating to 85 DEG C and enabling the heated mixture to be dissolved and mixed prior to uniform holding; (2), cooling the mixture to 55 DEG C, adding p-hydroxyacetophenone, stirring to homogenize for 2 minutes and dissolving and mixing uniformly; (3), cooling the mixture below 50 DEG C, adding dendrobium extracting liquid while stirring, mixing and stirring uniformly, and adding an arginine solution with mixing uniformly; (4), filtering obtained mixed liquid by a 400-mesh sieve at a low temperature of 5 DEG C so as to obtain anti-allergic dendrobium facial mask liquid. The anti-allergic dendrobium facial mask liquid is capable of solving the problem of skin aging fundamentally, making the skin restore to health, repairing and maintaining the skin in an all-round way, repairing the damaged skin, promoting skin renewal and endowing the skin with new persistent vitality.

The invention discloses a method for performing repairing renovation on surfaces of aged composite insulators. The method for performing repairing renovation on the surfaces of the aged composite insulators comprises the following steps of cleaning the surfaces of the aged or degraded composite insulators, and removing surface foul and pulverized layers; uniformly spraying RTV (room temperature vulcanization) coating on the surfaces of the composite insulators; and checking the surface of coats after the RTV coating is solidified. The performance of the composite insulators is improved by smearing the RTV coating on the surfaces of the composite insulators, new surfaces of the composite insulators with excellent performance are formed, and cracks and holes in the surfaces of the aged composite insulators are filled; and the RTV coating has excellent hydrophobicity and excellent hydrophobic migration, so that the renovated composite insulators also have the excellent hydrophobicity and the excellent hydrophobic migration, the service lives of the composite insulators are prolonged, the problem that the existing composite insulators are aged and degraded is well solved, the cost is reduced to a certain degree, and the work efficiency is improved.

The invention provides a fiber grating self-compensating strain transducer manufactured by adopting an online molding process, relating to the technical field of temperature transducers. A compensating device is composed of a part B and a solid body which are connected in series, wherein, the solid body is manufactured by adopting the online molding process for embedding and fixing the whole fiber grating in the solid body, and at least one of the cross-sectional area and thermal expansion coefficient of the part B and the solid body is different from each other. The strain transducer has the positive effects that: when the environmental temperature rises or falls, the automatic compensation to grating wavelength temperature drift can be realized by the effect of stress deformation, with precision compensation and good working stability; moreover, the strain transducer also has the advantages of small size, low cost, easy processing, good working stability, convenient use, stability and reliability, and long service life; the molding process of the strain transducer is simple and convenient, the compensation performance can be guaranteed to be reliable, and the problems that grating adhesive process has easy creep deformation, easy aging, unreliable grating combination, short service life and the like in the prior art are solved.

The present invention discloses a rice seed cold storage method, and relates to a field of agricultural product fresh keeping storage. The method includes the following steps: cleaning and selecting, pre-cooling, sterilization, spraying of a fresh-keeping agent, loading of a moisture bag, warehouse disinfection, controlling of the temperature, controlling of the content of oxygen and carbon dioxide, controlling of the moisture of warehouse and ex-warehousing. The method of the present invention has the following advantages that the cold storage method determines appropriate conditions for the rice seed storage, ensures reasonable temperature, moisture and gas composition inside the warehouse, solves the problems of water losing, aging, yellowing, germination, fast decaying during the process of rice seed storage, improves the rice storage time without destroying the texture of the rice seed, promotes the development of the rice industry, increases the added value and promotes the construction of an agricultural production chain demonstration mode.

The invention relates to a preparation method of a PVC (Polyvinyl Chloride) sectional material with surface coated with a metal film. The PVC sectional material with the surface coated with the metal film is prepared by material mixing, co-extrusion, vacuum cooling and sizing, coating of an aluminum film on the surface of the sectional material, cutting and molding. According to the preparation method provided by the invention, a PVC raw material and hot melt adhesive are compounded together by a way of co-extrusion, so that the bonding strength of the hot melt adhesive is high, the bonding of the metal film is uniform and strong, the bonding strength is high, delamination is unlikely to occur, and the continuous production of the hot melt adhesive, PVC raw material powder and PVC sectional material products with the surfaces coated with the metal films can be realized.

The invention relates to a transparent fluorescent ceramic material and in particular relates to a Ce:YAG based transparent ceramic being used for fluorescence conversion of a white laser diode (hereinafter referred to as LED) and containing Sr and a preparation method thereof. The chemical formula of the transparent ceramic is MgAl<2>O<4>-(Ce<x>Sr<y>Y<1-x-y>)<3>Al<5>O<12>. The transparent ceramic can be directly used as a packaging material to replace traditional organic polymers or silica gel packaging materials, and compared with existing transparent ceramics, has lower and stable color temperature, excellent luminous efficiency, obviously improved color rendering index and quite high stability and optical attenuation resistance; therefore the transparent ceramic has satisfactory service life.

The invention discloses a baijiu fermenting tank and a building method. The problems that for a general fermentation pit, pit mud is prone to aging, and for a returned mud fermentation method, due to the fact that the mud quantity in fermented grains is too large, distillation is affected are solved. The baijiu fermenting tank comprises a fermentation pit, a pit cover, a pit cavity, a waterproof layer, a fermentation pit liquid containing interlayer, a yellow water tank and a U-shaped tube, the fermentation pit is internally provided with a pit mud permeable barrier, the portion between the pit mud permeable barrier and the inner wall of the fermentation pit is the fermentation pit liquid containing interlayer which is shaped like an inverted truncated triangular pyramid, and a pit edge seal ring is arranged on the top of the fermentation pit liquid containing interlayer. According to the fermenting tank, the pit mud is rich in a large amount of beneficial microbiota, and generation of aroma-producing substances of distiller's grains is increased; a functional bacteria culture solution is added into a pit cover liquid containing cavity and the fermentation pit liquid containing interlayer, after a main fermentation period is completed, the functional bacteria culture solution permeates the distiller's grains through the permeable barrier, a biochemical reaction of generating ester from acid and alcohol is completed, the content of aroma-producing ingredients of strong-flavor baijiu is further increased, and a baijiu body style is highlighted.

The invention discloses a CPT resonance frequency device based on a DSP phase lock technique. The CPT resonance frequency device based on the DSP phase lock technique mainly comprises a power supply unit, an LC resonance coupler and a frequency tracking unit, wherein the frequency tracking unit comprises a digital signal processor (DSP), the pulse width modulation (PWM) input end of the DSP is connected with a power amplifier connected with the LC resonance coupler, inductors and capacitors of a primary coil and a secondary coil of the LC resonance coupler are arranged symmetrically, PWM waves produced by the DSP are converted to sinusoidal waves through second order filtering, input into the power amplifier, and outputs sinusoidal signals with certain power to the LC resonance coupler. According to the CPT resonance frequency device based on the DSP phase lock technique, signal output power of the power amplifier is controlled by PWM waves produced by the DSP, phase lock is achieved by utilizing the DSP, not only hardware circuits are simplified and cost is reduced, but also problems of burn-in, temperature drift and the like of devices in analog circuits are solved, and accuracy and speed of the phase lock are improved.

The invention discloses a waterproof and breathable material. The waterproof and breathable material is sequentially provided with an uvioresistant coating, a high-temperature-resistant coating, a first non-woven cloth layer, a biomass particle layer, a second non-woven cloth layer and a flame retardant layer, wherein the uvioresistant coating contains 20wt% of phenylethyl salicylate, 30wt% of 2-(2'-hydroxy-5'-methylphenyl) benzotriazole, 10wt% of p-toluylic acidresorcinol ester, 10wt% of epoxy resin and 30wt% of a porous microsphere. According to the material, the uvioresistant coating is additionally arranged at the outermost layer, and the problem of easiness in aging of non-woven cloth is solved; by the additional arrangement of the high-temperature-resistant layer and the flame retardant layer, the high-temperature resistance and the flame retardance of the waterproof and breathable material are improved, so that the service life of the waterproof and breathable material is prolonged; an environment-friendly biomass energy source is introduced as an intermediate breathable layer, so that the dustproof, damp-proof and breathable capabilities of the waterproof and breathable material are ensured, the production cost is reduced, and the production environment is enhanced.

The invention discloses an umbrella hatch cover of a small unmanned aerial vehicle parachute recovery system. The umbrella canopy is composed of a front cover of the umbrella canopy and a rear cover of the umbrella canopy. The open double umbrella canopy makes the front and rear umbrella hanger joints all placed inside the fuselage, and the rear cover of the umbrella canopy uses a limit cloth to limit the opening angle and reduce the flight resistance. The split double umbrella canopy reduces the rigidity requirements for the umbrella canopy. The umbrella canopy is made of carbon fiber composite material with a honeycomb sandwich structure, which can reduce the weight by 60% compared with the aluminum alloy canopy canopy.

The invention relates to an essential oil essence capsule and a method for preparing the same. The essential oil essence capsule is prepared from the following compounds by weight percent: 20%-35% of jojoba extract, 4%-6% of lemongrass oil extract, 3%-5% of geranium essential oil extract, 1.5%-2.5% of rosemary essential oil extract, 1.5%-2.5% of chamomile essential oil extract, 1.5%-2.5% of tea tree essential oil extract, 1.5%-2.5% of ginger essential oil extract, 0.8%-1.2% of peppermint essential oil extract, 0.8%-1.2% of frankincense essential oil extract, 0.4%-0.6% of agilawood essential oil extract, 0.4%-0.6% of lavender essential oil extract and the balance of avocado essential oil extract. The essential oil essence has the characteristics of high permeability, no retention, high energy, high concentration degree, high safety, pleasant aroma and the like, and is the first choice for naturopathy.

A wood plastic aluminum door and window composite profile comprises a metal plate or metal paint or ASA or PMMA, a door and window profile with an inner aluminum core and an outer wood-plastic door and window profile, an internal decorating film, and glue. Metal plates wrap the door and window profile with the inner aluminum core and the outer wood-plastic door and window profile, or the outer side of the door and window profile with the inner aluminum core and the outer wood-plastic door and window profile is coated with metal paint, or ASA or PMMA wraps the outer side of the door and window profile with the inner aluminum core and the outer wood-plastic door and window profile in a co-extrusion mode. The decorating film wraps the inner side of the door and window profile with the inner aluminum core and the outer wood-plastic door and window profile.