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Special nonwoven fabric and its production process
The related manufacture technique for a special non-woven fabric with polyester staple fiber and LMF4080 fiber low-melting fiber as main constituent comprises: mixing, opening, feeding cotton, carding, placing net, pre- embroidering, primary embroidering, thermal treating with a cluster hot-rolling mill with surface temperature as 120-195Deg, forming or tenter-type hot-air forming at 130-230Deg or the combination of cylinder-type hot-air forming at 120-195Deg and rolling with a cluster hot-rolling mill, and packing. This product contains no any harmful chemical material (such as formaldehyde) fit to spread.
Owner:周永斌
Powder metallurgy brake pad friction material and preparation method thereof
The invention relates to a powder metallurgy brake pad friction material and a preparation method thereof. The preparation method comprises the following specific steps: (A) raw materials are weighed, and include the following components in percentage by mass: 46-56% of copper, 25-35% of ferrochrome, 8-18% of graphite and 4-7% of silicon carbide; (B) the raw materials are fully mixed; (C) the raw materials are molded by pressing; and the pressing pressure is 15-20 MPa; and (D) the pressurization and the sintering are performed; the sintering temperature is 950-1050 DEG C; the sintering time is 7-15 h; and the sintering pressure is 0.5-3 MPa. The prepared powder metallurgy brake pad friction material is high in purity, excellent in friction performance and lower in cost.
Owner:CRRC CHANGZHOU TECH MARK IND CO LTD +1
Compound heat-insulating plate and preparation method thereof
InactiveCN102503316AImprove fire performanceMature and simple construction technologyFiberSodium Bentonite
The invention discloses a compound heat-insulating plate which comprises the following raw materials by weight parts: 55 to 65 parts of white cement 42.5R, 0.3 to 1 part of latex powder DA-1420, 5 to 10 parts of hydroxypropyl methyl cellulose 40US, 20 to 30 parts of ash calcium powder, 1.5 to 2.5 parts of wood fibers, 1.5 to 2.5 parts of bentonite, 2 to 2.5 parts of polyphenyl grains and 25 to 40parts of water. The polystyrene foam grains with low coefficient of heat conductivity are wrapped and stuck by non-flammable inorganic materials and then are processed according to a certain process,thereby forming the compound heat-insulating plate. The compound heat-insulating plate is A-level anti-flaming and the implementing technology is simple.
Owner:ZHENGZHOU FEIFAN ENERGY SAVING TECH
Information security device, information security method, computer program, computer-readable recording medium, and integrated circuit
ActiveUS20100064142A1Avoid weightDifficult to analyzeDigital data processing detailsUnauthorized memory use protectionPower analysisCryptosystem
The present invention aims to provide an information security apparatus that counters a simple power analysis attack (SPA) on an information security apparatus such as an RSA cryptosystem. The information security apparatus uses a multiplication with 1 in a Montgomery domain. 1 in the Montgomery domain is determined depending on a modulus and an integer k, which is greater than a number of bits of a modulus p. Therefore, it is hard for attackers who do not know p or k to analyze. Also, even if an analyzer can predict the Hamming weight, it is possible to further improve the safety against the SPA by modifying k or the modulus at random.
Owner:PANASONIC CORP
Processing method of fresh-keeping instant rice noodles
ActiveCN110037241ALow gelatinization temperatureGood gelatinization temperatureFood ingredient as emulsifierRetrogradationFermentation
The invention provides a processing method of fresh-keeping instant rice noodles, and relates to the technical field of food processing. The processing method of the fresh-keeping instant rice noodlescomprises the following steps of (1) preparing the raw materials; (2) performing fermentation; (3) performing milling to obtain pulp; (4) performing blending; (5) performing enzymolysis; (6) performing twin-screw extruding and shaping; (7) performing ageing; (8) performing cooking once again; (9) performing noodle washing, and performing cutting off; (10) performing metering and packing; (11) performing post-sterilizing; and (12) performing cooling. According to the fresh-keeping instant rice noodles, the compounding ratio of the materials is adjusted and controlled, and secondary fermentation is combined with optimization treatment with diastase, noodle cooking, cooking, recooking, post-sterilizing and quick cooling, so that the problems that rice noodles are subjected to beta configuration (namely retrogradation) and cannot be stored for a long term can be solved, the rice starch can maintain alpha state, and the instant rice noodles being rapid in rehydration, good in mouth feel and edible after being brewed for a short time, can be made.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
Quickly-curable dip-coating glue solution, engine oil filter paper applying same and preparation method thereof
ActiveCN107178003AFast curingGuaranteed flexibilityPaper coatingReinforcing agents additionTetraminePulp and paper industry
The invention relates to a quickly-curable dip-coating glue solution, engine oil filter paper applying the same and a preparation method thereof. The low-temperature quickly-curable oil filter paper is obtained by impregnation and curing of dip-coating glue solution dilution. The dip-coating glue solution is prepared from, by weight, 60-75% of thermosetting resin, 20-35% of thermoplastic resin, 0.5-2% of an accelerant and 1-5% of a curing agent, wherein the accelerant is hexamethylene tetramine, and the curing agent is dicyandiamide. Compared with adoption of existing phenolic resin, under identical drying oven temperature conditions, adoption of the dip-coating glue solution for dip-coating of raw paper can increase speed by 10%, increase yield and increase profits. Products are high in flexibility on the premise of guaranteeing filter paper quality, and bending at a subsequent section is facilitated.
Owner:山东龙德复合材料科技股份有限公司
Multilayered printed wiring board and method for manufacturing the same
InactiveCN101115352AHardSoftBox making operationsFinal product manufactureMiniaturizationEngineering
A multilayered printed wiring board includes a flexible wiring board with wiring layers on both main surfaces thereof; a rigid wiring board with wiring layers on both main surfaces thereof and formed opposite to the flexible wiring board under the condition that an area of the main surface of the rigid wiring board is smaller than an area of the main surface of the flexible wiring board; and an electric / electronic component embedded in the rigid wiring board.
Owner:DAI NIPPON PRINTING CO LTD
Antifouling dry-powdered emulsion paint and preparation method thereof
The invention relates to an antifouling dry-powdered emulsion paint. Global hardness is provided by the utilization of network-like mineral formed by white cement hydration; an ash-calcium modifying agent is added to improve properties of ash-calcium, and ash-calcium is carbonized to generate netted calcium carbonate which interpenetrates to reinforce middle and late hardness; supported by VAE redispersible latex powder, the system's flexibility and elasticity are improved; by the addition of a composite water reduction material, it is guaranteed that various materials are uniformly dispersed in the system, and micropore structure of the system is improved; by the addition of talcum powder and kaolin, construction performance is improved; by the addition of hydroxyethyl cellulose ether, the system's denseness and water retention capacity are increased; by the introduction of superfine nano-silica, compactness of the system is improved; by the addition of a water repellent, the coating is endowed with overall waterproofing property; and polyaluminum chloride is further added to react with calcium hydroxide in the system so as to generate expansile aluminium hydroxide and hydrated chloroaluminate. Thus, the coating becomes a compact integral body and has strong antifouling performance and good air permeability.
Owner:许英男
High red hard boron-containing high speed steel and preparation method thereof
InactiveCN108251755AImprove red hardnessIncrease hardnessProcess efficiency improvementChemical compositionWear resistant
The invention discloses a high red hard boron-containing high speed steel and a preparation method thereof, and belongs to the technical field of wear-resistant material. The high red hard boron-containing high speed steel comprises the compositions of, by weight, 1.0-3.0 of B, 0.2-0.8 of C, 5.0-7.0 of Cr, 3.0-6.0 of Mo, 0.5-2.0 of Al, 0.5-1.5 of Si, 0.5-1.5 of V, 0.5-1.5 of Mn, and the balance Fe. The high red hard boron-containing high speed steel has excellent wearresistance, red hardness, and excellent harden ability. High hardness can be obtained by cooling only in the air, thus the highred hard boron-containing high speed steel is very suitable for the preparation of parts for use in high temperature wear conditions such as rolls. In addition, the production cost is low, productionprocess is simple, and promotion and application value is good.
Owner:XI AN JIAOTONG UNIV +1
Barrier laminate, gas barrier film and device using the same
InactiveUS20090305064A1Not easy to damageAdhesivenessLayered productsSolid-state devicesChemical compoundSilanes
Provided is a barrier laminate comprising at least one organic layer and at least one inorganic layer, wherein the organic layer is formed by curing a polymerizable compound having an ethylenic double bond, an aromatic group and a group capable of causing a silane coupling reaction.
Owner:FUJIFILM CORP
Making method of quick-frozen cyclone steamed stuffed bun dough
InactiveCN105638821AEffect on softnessSoft and refreshingDough treatmentBakery productsProcess engineeringFood products
The invention relates to the technical field of food, in particular to a making method of quick-frozen cyclone steamed stuffed bun dough. The making method includes the following steps of conducting mixing for the first time, conducting mixing for the second time, dividing dough, conducting quick-freezing, performing storage in a freezer, carrying out unfreezing, wrapping flaky grease, forming layers, rolling the layered dough, dicing the rolled dough, rolling the dough into cylinders, conducting quantitative division, putting the divided cylinders on the cups for skin forming, and carrying out quick-freezing. In the making method, by means of the mixing sequence of all the components and the synergistic effect of all the successive operation steps, the finally made quick-frozen cyclone steamed stuffed bun dough has the advantage of being long in storage life. According to the making method, by means of the synergistic effect of eggs, margarine, milk powder, flaky grease, white granulated sugar, salt and wheat flour, finally the made quick-frozen cyclone steamed stuffed bun dough has the advantages of being agreeably sweet, crispy, soft and refreshing.
Owner:东莞市绰士食品有限公司
Preparation method of silicon carbide-based composite material mechanical sealing sliding part
ActiveCN106866149AGood dispersionShort processing cycleEngine sealsMixed materialsPressureless sintering
The invention discloses a preparation method of a silicon carbide-based composite material mechanical sealing sliding part. The preparation method comprises following steps: a carbon mixed material is prepared; the carbon mixed material is mixed with silicon carbide powder obtained via pressureless sintering; an obtained mixture is subjected to sintering so as to obtain a workblank; and the workblank is subjected to ginding so as to obtain a finished product. The preparation method is capable of improving the performance of the silicon carbide-based composite material mechanical sealing sliding part such as sliding performance, shortening the preparation period of preparation of the silicon carbide composite material, and reducing production cost.
Owner:ZHUZHOU TORCH SPARK PLUG CO LTD
Ceramic electronic device
ActiveUS20190164694A1HardImprove heat resistanceFixed capacitor electrodesFixed capacitor dielectricMaterials scienceElectrode
A ceramic electronic device includes a chip component, a metal terminal, and a conductive connection member. The component includes a terminal electrode surface on which a terminal electrode is formed. The metal terminal includes an opposing surface to the electrode surface. The connection member contains at least Sn and Sb and connects the terminal electrode surface and the opposing surface. The connection member includes a first part and a second part. In the first part, a distance between the terminal electrode surface and the opposing surface is a first distance, and Sb / Sn is a first value. In the second part, a distance between the terminal electrode surface and the opposing surface is a second distance being smaller than the first distance, and Sb / Sn is a second value being larger than the first value.
Owner:TDK CORPARATION
Process for preparing granular pentonite
InactiveCN1155515CImprove water absorptionPure white colorSilicon compoundsPolymer scienceSodium silicate
Owner:张兴华
Blade for cutting instrument having edge of micro-sized uneven form, and cutting instrument having blade
InactiveCN107081790AConcentration area for fine dispersionGood for maintaining cutting forceWorkpiecesTurning toolsEngineeringMechanical engineering
The present invention relates to a blade for a cutting instrument having serrations, and a cutting instrument having the blade. According to the present invention, the blade for a cutting instrument allowing, at an edge part coming in contact with a material to be cut, hard particles constituting a composite to have a relatively protruding form compared to that of a metal matrix, during a manufacturing process or a use process, thereby having a micro-uneven form.
Owner:詹姆斯·康
Nonaqueous ink-jet magenta ink composition
ActiveUS20190161634A1Good weather resistanceHardDuplicating/marking methodsInksOrganic solventMagenta
A non-aqueous magenta ink composition for ink jet printing comprising a pigment, a pigment dispersant, a binder resin and an organic solvent, wherein the pigment comprises C.I. Pigment Red 254 and a red pigment having a quinacridone skeleton, and wherein a total amount of the C.I. Pigment Red 254 and the red pigment having a quinacridone skeleton is not less than 50% by mass in the pigment.
Owner:SAKATA INX
Traffic cone and production method thereof
ActiveCN109354801APromote decompositionSpeed up the build processPolyethylene terephthalate glycolAntioxidant
The invention discloses a traffic cone, made from, by weight, 45-55 parts of PVC (polyvinyl chloride), 1-2 parts of a calcium-zinc stabilizer, 15-25 parts of dioctyl phthalate, 5-10 parts of paraffinoil, 10-15 parts of alumina, 10-15 parts of titanium dioxide, 10-15 parts of diatomite, 10-15 parts of fly ash, 0.05-0.08 part of an ultraviolet absorbent, 0.03-0.05 part of an anti-freezing agent, 0.01-0.03 part of an antioxidant, 0.05-0.1 part of a lubricant, 0.05-0.1 part of a dispersant, and 0.1-0.5 part of a colorant. The traffic cone has the advantages that the traffic cone can stick to PET(polyethylene terephthalate) film under high adhesive strength, PET film stripping time is extended, and the service life of the traffic cone can be extended accordingly.
Owner:ZHEJIANG DINGTIAN TRAFFIC FACILITIES CO LTD
Corrosion-resistant modified plastic and preparation method thereof
The invention discloses corrosion-resistant modified plastic. The plastic is prepared from the following raw materials in parts by weight: 50-70 parts of LDPE (low density polyethylene), 10-20 parts of a EVA (ethylene-vinyl acetate) copolymer, 1-5 parts of reduced iron powder, 2-10 parts of SiO2, 1-5 parts of a polymer toughener, 5-15 parts of alkali-free glass fiber, 2-5 parts of an antioxidant,5-15 parts of an auxiliary antioxidant, 5-15 parts of a light stabilizer, 5-10 parts of a fire retardant, 5-10 parts of a lubricant and 5-10 parts of a dispersant. A preparation method of the corrosion-resistant modified plastic comprises the following steps: adding the raw materials to a mixer, uniformly stirring the raw materials, and performing extruding through a double-screw extruder. SiO2 belongs to hard particles, wear resistance of plastics is effectively improved, the educed iron powder belongs to metal hard particles, adhesive capacity with the inside of the plastic is improved, andplasticization in the molding process is uniform; carbon black inhibits certain plastic deformation; by combination of the antioxidant and the auxiliary antioxidant, aging of the plastic can be effectively prevented, and service life is prolonged.
Owner:高邮市汉升高分子材料有限公司
Manganese ore slag foamed rare earth ceramic profile and preparation method thereof
ActiveCN105503241AImprove utilizationSimple processSolid waste disposalCeramicwareRare-earth elementSlag
The invention discloses a manganese ore slag foamed rare earth ceramic profile and a preparation method thereof. The manganese ore slag foamed rare earth ceramic profile is prepared from, by weight, manganese ore slag powder and a rare earth formulation additive, and the ratio of the manganese ore slag powder to the rare earth formulation additive is (38-85):(15-35). The rare earth formulation additive is prepared from, by weight, solid waste material powder and rare earth powder, and the ratio of the solid waste material powder to the rare earth powder is (50-90):(10-60). Manganese ore slag is mainly adopted as a main raw material, and is smashed and milled, then rare earth elements are added according to a certain formulation, high-temperature roasting is carried out after casting, and various profiles including plates, columns, bars, pipes, edges and other building and decoration profiles of all types needed in the building industry are formed after hard processing and surface treatment. The manganese ore slag foamed rare earth ceramic profile and the preparation method thereof have the advantages that the use amount of the manganese ore slag is large, the technological process is simple, no secondary pollution exists, and resource utilization of the manganese ore slag is achieved; the rare earth elements are added, so that foamed ceramic is higher in strength, better in toughness, more even in bubble, thinner in bubble wall and smaller in weight.
Owner:四川维杏生物科技有限公司
Method for processing semi-dry instant rice noodles
ActiveCN110037240ALow viscosityReduced Strength and HardnessFood ingredient as emulsifierSteamingMoisture
The invention provides a method for processing semi-dry instant rice noodles, and relates to the technical field of food processing. The method comprises the following steps: (1) raw material preparation; (2) fermentation; (3) pulping; (4) mixing; (5) enzymolysis; (6) primary steaming; (7) extrusion; (8) optimization; (9) secondary steaming; (10) cooling; and (11) drying. According to the semi-dryinstant rice noodles, the moisture content is controlled to be 14-16 percent through material proportion regulation and control, amylase optimizing treatment with twice fermentation, finished productmoisture control and the like, and the rice noodles can be taken when being soaked with boiling water at 80-100 DEG C for 2-5 minutes, the reconstitution properties are remained after long-time storage, and the problems of retrogradation, poor reconstitution properties of starch can be overcome.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
Powder metallurgy brake pad friction material and preparation method thereof
The invention relates to a powder metallurgy brake pad friction material and a preparation method thereof. The preparation method comprises the following specific steps: (A) raw materials are weighed, and include the following components in percentage by mass: 46-56% of copper, 25-35% of ferrochrome, 8-18% of graphite and 4-7% of silicon carbide; (B) the raw materials are fully mixed; (C) the raw materials are molded by pressing; and the pressing pressure is 15-20 MPa; and (D) the pressurization and the sintering are performed; the sintering temperature is 950-1050 DEG C; the sintering time is 7-15 h; and the sintering pressure is 0.5-3 MPa. The prepared powder metallurgy brake pad friction material is high in purity, excellent in friction performance and lower in cost.
Owner:CRRC CHANGZHOU TECH MARK IND CO LTD +1
Brewing type prepared dry rice noodles and preparation method thereof
PendingCN113575839AImprove qualityIncrease amylose contentFood ingredientsFood shapingFood safetyFood technology
The invention belongs to the technical field of food, and particularly relates to brewing type prepared dry rice noodles and a preparation method thereof, and the preparation method comprises the following steps: (1) preparing of raw materials; (2) soaking; (3) grinding; (4) blending; (5) extruding, curing, forming and cooling; (6) aging; and (7) drying. By regulating and controlling the material ratio, the performance of the modified cassava starch, extrusion and curing forming parameters and the like, the processed brewing type prepared dry rice noodles have uniform micro-bubble holes, are easy to brew and tasty, are rich in rice flavor and clear in soup, are not broken after being placed for a long time, can keep the state of being just brewed, and meet the requirements of DBS 45 / 051-2018 Food Safety Local Standard Dried Rice noodles.
Owner:广西农垦明阳淀粉发展有限公司
Green packaging box
InactiveCN114873060APlace stableEasy to placePackage recyclingRemovable lids/coversStructural engineeringIndustrial engineering
The invention relates to the technical field of intelligence, in particular to a green packaging box which comprises a box bottom plate, the top of the box bottom plate is fixedly connected with a box body mechanism, the box body mechanism is provided with a box cavity, a protection plate is arranged in the box cavity in a sleeved mode, an embedding opening is formed in the top of the box body mechanism, and an insertion frame is arranged in the embedding opening in a sleeved mode. When the protection plate is placed in the box cavity, the movable triangular sleeve moves towards the interior of the movable cavity under the extrusion action of the edges, so that after the movable triangular sleeve completely enters the movable cavity, the bevel edge at the bottom of the trapezoidal column makes contact with the edges, and under the extrusion action, the bevel edge at the bottom of the trapezoidal column can extrude the movable cavity towards one side; in this way, the second elastic inserting strip and the first elastic inserting strip are recycled, then the top containing plate can quickly enter the box cavity, and when the top containing plate moves to the position of the bearing clamping groove, the second elastic inserting strip and the first elastic inserting strip can be clamped in the bearing clamping groove under the elastic effect.
Owner:谢洋洋
Supporting device made of retractable supporting rods
PendingCN114033951AEasy to carryEasy to storeStands/trestlesTowersStraight tubeStructural engineering
The invention relates to a supporting device made of retractable supporting rods, at least three supporting rods and an upper center clamping piece are arranged, and each supporting rod is formed by combining a retractable supporting rod and a group of clamping head assemblies on the retractable supporting rod; the retractable supporting rod is made of a bistable composite material structure body, when the retractable supporting rod is in a working state, the retractable supporting rod extends to form a main stable straight pipe which is rolled up in the axial direction of a long side and has a C-shaped section, and when the retractable supporting rod is in a non-working state, the retractable supporting rod is a sub-stable rolling belt rolled up in the axial direction of a short side; the group of clamping head assemblies at least comprise an upper end part clamping head assembly and a lower end part clamping head assembly, and further comprise more than one middle clamping head assembly; each clamping head assembly adopts a pull buckle type locking structure or an eccentric clamping structure; the upper end of each supporting rod is provided with a connector connected with the upper center clamping piece. The device has the advantages of small size, light weight, high strength, high erection, quick deployment and the like, can be carried by a single person, is particularly suitable for being used under the condition that a vehicle cannot reach, and can provide powerful guarantee for quickly constructing an emergency network.
Owner:北京复合方寸科技有限公司
A kind of processing method of semi-dry brewing rice noodles
ActiveCN110037240BLow gelatinization temperatureGood gelatinization temperatureFood ingredient as emulsifierAmylaseEnzymatic hydrolysis
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
A municipal jointer
InactiveCN111576897BReduce loadGuaranteed pointing effectBuilding material handlingEngineeringSlide plate
The invention relates to a municipal pointing device, which comprises two sucking devices, two connecting plates, a sliding plate, a handle and a jointing device, two connecting plates are connected between the two sucking devices, two The middle part of the sucking device is provided with a sliding plate, the middle part of the sliding plate is provided with a handle, and the lower side of the front end of the handle is provided with a jointing device. The present invention can solve the problem that the existing pointing tools have a single structure. When pointing, the direction and depth of the pointing tools need to be controlled by hand, and the attention of personnel needs to be kept concentrated for a long time. When pointing, distraction is very easy to cause The movement direction of the tool deviates, which leads to the fact that there is no pointing treatment for the gap at this place. Long-term operation often accelerates the fatigue of the personnel, and the structure of the existing pointing tools is fixed, and the effect after pointing is single, which needs to be done. When dealing with gaps with different effects, it is often necessary to carry tools with multiple structures.
Owner:HUBEI JINGBIAO CONSTR ENG CO LTD
Municipal pointing device
InactiveCN111576897AReduce loadGuaranteed pointing effectBuilding material handlingEngineeringSlide plate
The invention relates to a municipal pointing device, which comprises two sucking devices, two connecting plates, a sliding plate, a handle and a pointing device body. The two connecting plates are connected between the two sucking devices, the sliding plate is arranged in the middle between the two sucking devices, the handle is mounted in the middle of the sliding plate, and the pointing devicebody is mounted on the lower side of the front end of the handle. According to the municipal pointing device, the problems that an existing pointing tool is simplex in structure, the direction and depth of the pointing tool need to be controlled by the hand during pointing, the attention of personnel needs to be kept focused for a long time, the motion direction of the tool is extremely prone to deviating due to distraction during pointing, consequently, a joint in the position is not pointed, the fatigue degree of the personnel is frequently increased due to long-term operation, the existingpointing tool is structurally fixed, the effect after pointing is simplex, and tools of a variety of structures frequently need to be carried when joints with different effects are made can be solved.
Owner:HUBEI JINGBIAO CONSTR ENG CO LTD
A kind of polyurethane elastomer polishing material and preparation method thereof
Owner:山西合成材料产业技术研究院有限公司
A kind of processing method of fresh-keeping instant rice noodles
ActiveCN110037241BLow gelatinization temperatureGood gelatinization temperatureFood ingredient as emulsifierEnzymatic hydrolysisProcess engineering
The invention provides a processing method for fresh-keeping instant rice noodles, and relates to the technical field of food processing. The processing method for fresh-keeping instant rice noodles of the present invention comprises the following steps: (1) preparation of raw materials, (2) fermentation, (3) grinding, ( 4) Blending, (5) Enzymolysis, (6) Twin-screw extrusion molding, (7) Aging, (8) Re-steaming, (9) Powder washing and cutting, (10) Metering and packaging, (11) Post-sterilization, (12) ) cooling; the fresh-keeping instant rice noodles of the present invention solve the problems of rice noodles beta (i.e. "back to life") and inability to be The problem of long-term storage keeps the rice starch in an α state, and produces instant rice noodles that are quickly rehydrated, have a good taste, and can be eaten after brewing in a short time.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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