186results about How to "Good market prospect" patented technology

A linear cutting stapler includes an upper jaw and a lower jaw capable of closing or opening relative to each other. A staple cartridge is disposed at a distal end of the lower jaw. The lower jaw is U-shaped, and has a staple driving rod and a blade driving rod slidably disposed therein. The linear cutting stapler further includes a safety mechanism which includes an engagement member. A notch fitting the engagement member is disposed on a bottom surface of the staple driving rod. The safety mechanism further includes a floating block which is displaceable in the lower jaw in an up-down direction perpendicular to the length direction of the lower jaw. When the floating block is pressed against the staple cartridge or an anvil, a top end of the engagement member is driven to displace in the up-down direction, thus the engagement member is separated from the notch.

The present invention relates to an air-conditioning system with full heat recovery comprising a condenser, an evaporator, a compressor and an expansion valve; one side of the condenser is disposed in a position corresponding to an indoor air outlet and an outdoor air inlet; the other side of the condenser is provided with an exhaust vent; and a cooling fan is disposed between the exhaust vent and a cooling air opening. The present air-conditioning system with full heat recovery can be connected with a condensate recycle system. The present invention utilizes low temperature, low humidity indoor exhaust air as cooling air for the evaporative condenser. It makes use of the sensible heat. (temperature difference) of indoor exhaust air as well as the latent heat (humidity difference) of indoor exhaust air, thereby attaining better condensation effects. It also uses the condensate to assist cooling and increases cooling and water saving effects. The present invention can be widely used in the air-conditioning systems in restaurants, hospitals, supermarkets, villas and offices and has wide applications.

A waterproof socket includes an inner core fixing base disposed between a retention frame and a socket base. Lower insertion holes are coaxial with an output terminal and are formed in the inner core fixing base. An accommodating groove is formed between two lower insertion holes. A waterproof inner core is disposed in the accommodating groove. The waterproof inner core includes a main body movably inserted in the accommodating groove. Two upper seal doors are sealed at upper insertion holes of the retention frame and are disposed on two upper sides of the main body, and two swing rods are symmetrically disposed below the upper seal doors. One end of each of the swing rod is hinged to the main body, and the other end of the swing rod is provided with a lower seal door for sealing the lower insertion holes of the inner core fixing base.

The invention belongs to the technical field of cement auxiliary-grinding agents, and in particular to a preparation method for a cement auxiliary-grinding strengthener of a polyethylene glycol amine ester carboxylic acid system. The preparation method comprises the following steps: (1) performing esterification reaction on alcohol amines and unsaturated carboxylate in a molar mass ratio to obtain esterification monomers which contain polar groups, such as hydroxyl and carboxyl; (2) adding unsaturated large monomers and water into a reaction container, stirring, heating and dissolving, respectively adding an initiator, the esterification monomers and a chain transfer agent dropwise, preserving the heat after the reaction is performed for a certain period of time, and adjusting the pH of a solution to be neutral after the reaction is completed so as to prepare the cement auxiliary-grinding strengthener of the polyethylene glycol amine ester carboxylic acid system. The cement auxiliary-grinding strengthener fully plays the action mechanism of the polar functional groups, such as the hydroxyl and the carboxyl, on cement; when the using amount is 0.01 to 0.1 percent of the mass of the cement, the yield each grinding machine per hour is improved by 12 to 25 percent, the 3-day strength of the cement can be increased by 2 to 5 MPa, the 28-day strength of the cement can be increased by 4 to 8 MPa, and the aims of stable performance and remarkable effects of auxiliary grinding and strengthening are fulfilled.

The invention discloses a corrosion-resistance weldable titanium alloy with high strength and high impact toughness, and relates to the technical field of titanium alloys. The corrosion-resistance weldable titanium alloy comprises the following components in percentage by mass: 4.0-8.0 wt.% of Al, 0.3-6.0 wt.% of Mo, 0.3-6.0 wt.% of V, 0.3-5.0 wt.% of Nb, 0.3-6.0 wt.% of Cr, 0.3-5.0 wt.% of Zr, aluminum equivalent [Al] not less than 6, molybdenum equivalent [Mo] not more than 8.0, and the balance of Ti, interstitial elements and inevitable impurity elements; the interstitial elements are C, H, O and N; and the mass percentage sum of all the elements in the titanium alloy is 100%. The titanium alloy material has comprehensive performances of high strength, high impact toughness, corrosion resistance and weldability, is excellent in cold and hot processing performance, and can be molded as forgings, thick plates and the like.

The invention provides an antenna housing substrate and a preparation method thereof. The antenna housing substrate is prepared by mixing substrate resin with any one of hollow microspheres, aerogel, a foaming agent and mixture of the hollow microspheres and the aerogel and applying an extrusion forming or injection molding technology. The antenna housing substrate prepared by the method is provided with no glass fiber reinforcing layer, so that the dielectric loss is low, the dielectric constant is low; meanwhile, substrates of different performances can be prepared through design of the formula; the industrial production requirements are met; and the antenna housing substrate has good development and application prospect.

The invention discloses an intelligent humidity regulating fruit and vegetable box of a high-humidity refrigerator. The intelligent humidity regulating fruit and vegetable box comprises a box. An upper cover plate is arranged on the top of the box, a plurality of moisture-permeable through holes are formed in the upper cover plate, and an automatic humidity regulating functional material block is arranged on the upper surface of the upper cover plate and is positioned at the moisture-permeable through holes; a humidity regulating box covers the automatic humidity regulating functional material block, and the bottom of the humidity regulating box is connected onto the upper cover plate; an automatic regulating door is hinged to the humidity regulating box; the middle of the side, which faces the automatic regulating door, of the automatic humidity regulating functional material block is protruded to form an ejecting protrusion, a gap is reserved between the ejecting protrusion and the automatic regulating door, and a gap is reserved between the top surface of the automatic humidity regulating functional material block and the top of the humidity regulating box. The intelligent humidity regulating fruit and vegetable box has the advantages that moisture of the fruit and vegetable box can be sucked or released by the aid of moisture absorption and swelling characteristics of the automatic humidity regulating functional material block, manual operation can be omitted in humidity regulating procedures, extra energy also can be omitted, the high internal humidity of the fruit and vegetable box can be timely and effectively maintained, condensed water generated in the fruit and vegetable box can be reduced, and the fresh-keeping capacity of the fruit and vegetable box can be greatly improved.

The invention discloses a preparation method of a hydro-thermal coupling spray pyrolysis MnO2 / graphene electrode material, belonging to the technical field of electrode materials for energy storage systems. The preparation method comprises the following steps: uniformly mixing graphene oxide (GO) prepared by using a Hummer method with an aqueous solution of bivalent manganese salt and a doped metal ion compound, adding a dispersing agent, an oxidant and a surfactant, and ultrasonically dispersing for a certain period of time; putting the mixed solution into a hydrothermal kettle, adjusting the temperature, and keeping for a certain period of time; filtering and washing a reaction product to obtain a precursor; adding the dispersing agent and the surfactant into the precursor, uniformly stirring for mixing, and adjusting the solid-liquid ratio, inlet temperature and outlet temperature to perform spray pyrolysis in order to obtain a metal ion-doped MnO2 / graphene nanometer composite electrode material. According to the nanometer composite electrode material prepared by using the method, components are uniform and the batch stability is high.

The invention discloses an aromatic plastic bag and a production method thereof. The prescription of the invention is as follows: flavors are added in polyethylene plastic. In the production, the flavors are evenly mixed with a right amount of the polyethylene particles to be extruded and granulated to obtain high concentration aromatic master batches; then the high concentration aromatic master batches are mixed with the rest polyethylene particles and undergo the extrusion, film blowing and bag making procedures to prepare the aromatic plastic bag capable of covering up the smell. The plastic bag which is produced by the invention has special aromas, can be used for various plastic bags, especially the refuse bags. The smell generated by the refuse decaying can be covered up by the aromas contained in the aromatic plastic bag when the aromatic plastic bag is used, and the aromatic plastic bag has a good market prospect.

The invention relates to a high-intensity, high-toughness and corrosion-resistant titanium alloy and a preparation method thereof, and belongs to the field of alloys. The titanium alloy is prepared from the following element components (in percentage by mass): 3.0 to 7.0 percent of Al; 2.0 to 6.0 percent of a beta-stable element (Mo+Nb+V), 0.01 to 6.0 percent of Ta, 0.5 to 3.5 percent of Zr and the balance of Ti and unavoidable impurities. The performance of the alloy is as follows: Rp0.2 is greater than or equal to 840 MPa, Rm is greater than or equal to 940 MPa, A is greater than or equal to8 percent, KIC is greater than or equal to 110 MPa.m<1 / 2>, KISCC is greater than or equal to 100 MPa.m<1 / 2>, and KV2 is greater than or equal to 60J. The alloy has good technology application and market prospects in the field of ship, marine engineering and the like.

A sealant composition is provided; the sealant composition comprises latex emulsion, nanoporous particles, surfactant, anti-freezing agent, wetting agent, and water. The sealant composition of the present application achieves a good sealing performance for the puncture of the tire. Furthermore, the sealant composition is easy to use and non-perishable, and has a long shelf life, which endows the sealant composition with a good market prospect.

The invention discloses a preparing method of a cold rolled steel plate. The method includes: sequentially subjecting a slab to hot rolling, coiling, cold rolling, annealing, finishing and stretch bending and straightening. The slab comprises following components by weight: 0.001-0.006% of C, 0.1-0.5% of Si, 0.8-1.4% of Mn, 0.07-0.15% of P, not more than 0.015% of S, 0.01-0.05% of Ti, 0.02-0.07% of Nb, 0.001-0.002% of B, 0.01-0.08% of Al, and 97.73-99% of Fe, with the balance being unavoidable impurities. The invention also discloses a cold rolled steel plate prepared by the method. According to the prepared steel plate, the ReL is 280-350 MPa, the Rm is not less than 440 MPa, the A80 is not less than 36%, the r90 is not less than 1.7, and the n90 is not less than 0.18. The prepared steel plate has a good market prospect.

The present invention relates to the technical field of polymer composite materials, particularly to a low-odor polypropylene composite material and a preparation method thereof, wherein the low-odorpolypropylene composite material is prepared from the following components by weight, 55-99 wt% of polypropylene, 0.1-2 wt% of an odor adsorbent, 0.1-3 wt% of a small molecular deodorant, 0.05-0.5 wt%of a scratch-resistant agent, 0-40 wt% of talc powder, 0.1-1 wt% of a main antioxidant, 0.1-1 wt% of an auxiliary antioxidant, and 0.1-1 wt% of a lubricant. According to the present invention, with the technical scheme, the production cost is low, the market prospect is good, and the obtained low-odor polypropylene composite material can be used in the vehicle field such as vehicle instrument panels, door protection plates, sub-instrument panels and other vehicle interior and exterior decoration parts, and the household appliance field such as refrigerators and small household appliances.

The invention relates to a novel feed for piglet. The feed comprises the following components, by weight: 50-60 parts of corn, 10-20 parts of rice bran, 3-6 parts of a high-quality fish meal, 20-30 parts of a peanut meal, 3-10 part of wheat bran, 1-3 parts of calcium hydrogen phosphate, 0.1-1 part of a stone powder, 2-5 parts of a additive, 5-10 parts of vitamins, 5-10 parts of minerals and a small amount of a flavoring agent. The novel feed for piglet prepared by the invention has a new component composition and rich components, and is able to provide adequate nutrition for piglet growth, and suitable for healthy growth of piglets. The feed prepared by the invention has simple preparation and usage method; the components can be directly mixed for direct eating by the piglets. Therefore, the excellent feed has promising market prospects.

A waterproof socket includes an inner core fixing base disposed between a retention frame and a socket base. Lower insertion holes are coaxial with an output terminal and are formed in the inner core fixing base. An accommodating groove is formed between two lower insertion holes. A waterproof inner core is disposed in the accommodating groove. The waterproof inner core includes a main body movably inserted in the accommodating groove. Two upper seal doors are sealed at upper insertion holes of the retention frame and are disposed on two upper sides of the main body, and two swing rods are symmetrically disposed below the upper seal doors. One end of each of the swing rod is hinged to the main body, and the other end of the swing rod is provided with a lower seal door for sealing the lower insertion holes of the inner core fixing base.

The invention relates to an article for daily use, namely a body object family-love keepsake pendant. The keepsake pendant is a blocky object and is characterized in that a closed cavity bag (2) for placing an object (3) separated from a human body is arranged in the keepsake pendant (1). Because a body object of a loved one such as hairs, breast milk, umbilical cord, bone ash, lost teeth, fetal blood, nails and the like is conserved in the keepsake pendant, the keepsake pendant can directly carry the family love for passing memories and placing misses by people, is suitable for presenting and collecting, and has a significant utility value and a good market prospect.

The invention provides a flies-and-mosquitoes repellant aromatic formula, wherein the conventional raw material of mosquito-repellent incense is charged by a predetermined proportion of mugwort wormwood, yellow wormwood, atractylodes rhizome, orpiment, dahurian angelica root, spikenard and Zingiber kawagoii.

The invention discloses an intelligent sofa with a massage function, which mainly includes a sofa base frame, a sofa support leg, a cushion, a back chair, a pillow, a pillow, a back massager, and a neck massager; it is characterized in that: the sofa The bottom frame is provided with sofa support legs, the upper part of the sofa frame is provided with a cushion, the end of the seat cushion is provided with a pillow, the side of the sofa frame and the seat cushion is provided with a back chair, and the back chair is connected to the pillow, and the pillow is located below the pillow. A back massager is provided, the back massager is arranged in the seat cushion, a neck massager is arranged at the junction of the back chair and the pillow cushion, the neck massager is arranged in the back chair, the back massager and the neck The internal massager is connected to the intelligent control system, and the intelligent control system is arranged in the sofa bottom frame. The invention has the advantages of not only enabling people to massage when leaning against the sofa, but also enabling massage when lying down, and adjusting the intensity of massage according to the pressure value or gravity value of the human body.

The invention discloses a slow release type polycarboxylate water reducer which is polycarboxylate water reducer solution. The slow release type polycarboxylate water reducer comprises polymer water solution and alkaline water solution, wherein the polymer water solution is polymerized by three ingredients: A, water solution of polyoxyethylene ether or polyoxypropylene ether, B, acrylic acid and / or methacrylic acid and / or itaconic acid and / or esters of the three, and C, sodium allylsulfonate and / or sodium methallyl sulfonate; and the alkaline water solution is used for neutralizing the polymer water solution. According to the slow release type polycarboxylate water reducer, low alkali content and excellent slump retentivity are provided, the operation is labor-saving when the water reducer is used for concrete, the cement mixture has high fluidity, high slump protection capability and favorable peaceability, the production process is simple, the reaction condition is easy to control and no environmental pollution is caused.

The invention relates to a method for extracting antioxidant peptide from peony seed meal and belongs to the technical field of agriculture product processing. The method is realized by adopting the following specific steps: carrying out freezing and microwave thawing on the peony seed meal in sequence, degreasing, drying and grinding into powder; adding a solvent, lactitol and citric acid into the peony seed meal, allowing standing still and then adjusting the pH value to 11.0; carrying out ultrasonic treatment and centrifuging, and taking supernatant; then adjusting the pH value to 3.80, centrifuging, precipitating and freeze-drying to obtain lyophilized powder; weighing the lyophilized powder and dissolving the lyophilized powder into deionized water, adding beeswax and preheating to obtain a mixed solution; adjusting the pH value of the mixed solution to 8.0, adding protease, carrying out enzymolysis and enzyme denaturalixation, collecting the supernatant and then carrying out freeze-drying, thus obtaining a finished product. According to the method for extracting the antioxidant peptide from the peony seed meal, disclosed by the invention, the peony seed meal is utilized as araw material, and the hydrolysis degree and the antioxidant resistance are taken into full consideration, so that an optimum technology for polypeptide with higher antioxidant activity, which is prepared by utilizing peony seed meal protein, is obtained and provides a theoretical basis for deep processing, development and utilization of the peony seed meal; in addition, the preparation process issimple and the market prospect is good.

The invention discloses wireless charging power supply which comprises a body. An inner chamber of the body is provided with an input module and at least one wireless charging module; an upper surface of the body is provided with at least one plane which is provided with a charging area which is used for performing charging on an external terminal in the charging area; the area of the charging area is located between 15 to 150000 square cm; the thickness of the body is between 0.3 to 6 cm; the wireless charging module is provided with at least one sensing unit which is adjacent to the charging area; the input module which is connected with the wireless charging module is used for receiving external power supply and supplying power for the wireless charging module; and every sensing unit which is respectively connected with the input module and a corresponding wireless charging module is used for sensing that the external terminal enters into a charging area of a corresponding wireless charging module and controlling the input module to charging the external terminal through the wireless charging module.

The invention provides a track lofting gauge. The track lofting rule comprises a main beam, a fast wheel and a measuring wheel, wherein the main beam has the upper part provided with a track gauge sensor and an inclination sensor and the lower part provided with a left rail beam and a right rail beam; a rail-top prism and the fast wheel are arranged on the upper side and the lower side of the left rail beam respectively; a center prism is arranged on the main beam, and the center point of the center prism is arranged on the connection line between lower ends of the left rail beam and the right rail beam; the measuring wheel is arranged on one end of a support bar of the measuring wheel, and the track gauge sensor is arranged on the other end of the support bar of the measuring wheel; a pull rod is connected with the support bar of the measuring wheel; the main beam is also provided with an electric control box provided inside with a single-board computer; the track gauge sensor and the inclination sensor are connected with the electric control box by cables respectively. The track lofting gauge can automatically measure coordinates of the rail-top prism and the center prism by an electric total station, thereby realizing the absolute measurement of the three dimensional coordinates of the track center.

The invention discloses key machining equipment. The key machining equipment comprises a base, a machine frame, a lifting mechanism, a driving mechanism, a clamp assembly and a horizontal movement mechanism, wherein the machine frame is arranged on the base; the lifting mechanism is arranged on the machine frame, a milling tool and a probe are arranged on the lifting mechanism side by side, and the lifting mechanism is used for driving the milling tool and the probe to ascend or descend; the driving mechanism is arranged on the machine frame and used for driving the lifting mechanism to slide up and down relative to the machine frame and positioning the lifting mechanism in a preset position; the clamp assembly is arranged below the lifting mechanism and used for clamping a key sample and a key blank; the horizontal movement mechanism is arranged on the base, the clamp assembly is supported on the horizontal movement mechanism, and the horizontal movement mechanism is used for driving the clamp assembly to horizontally move along the X axis and / or the Y axis. The key machining equipment has the beneficial effects of being good in adjustability, good in controllability, convenient to use and the like.

The invention discloses a tartary buckwheat oligosaccharide yoghourt which is characterized by being prepared from the following raw materials by weight percent: 0.1-10% of tartary buckwheat flour, 0.1-10% of oligomerization isomaltose, 85-95% of fresh milk and a proper amount of conventional additive materials which comprise lactobacillus fermentation powder, cane sugar and pectin. The tartary buckwheat oligosaccharide yoghourt provided by the invention is new-type fermented milk with special flavor, rich nutrition, fine mouthfeel and obvious health-care effect; the special fragrance of the tartary buckwheat is improved and coordinated; the components having health-care effects on human bodies are brought into full play; the special taste and preference of special consumers are satisfied simultaneously; and the tartary buckwheat oligosaccharide yoghourt can be more easily accepted by vast common consumers.

The invention discloses an intelligent electronic flower capable of monitoring and controlling an indoor environment. The intelligent electronic flower comprises a technological flower body, a humidifier module, an anion generation module, an intelligent control device, a remote controller and a power supply module, wherein the intelligent control device takes a singlechip as a core, and comprises a temperature and humidity sensor, a pollution degree sensor, a wireless remote control receiving device, a relay, an LED (light emitting diode) lamp set, a scape steering engine, a leaf steering engine and an LCD (liquid crystal display) screen; the temperature and humidity sensor and the pollution degree sensor are used for measuring environment temperature, humidity and pollution degree information which is displayed by the LCD screen; the remote controller is used for starting or stopping the humidifier module, and artificially setting a humidity expectation value; and the power supply module is used for supplying power for power utilization devices of the intelligent electronic flower. The intelligent electronic flower integrates temperature, humidity and pollution degree detection; the indoor environment can be monitored and controlled intelligently; and the intelligent electronic flower is a beautiful technological flower in appearance, and has a better market prospect.

The invention provides an environmentally-friendly aqueous leather stamp-pad ink with environmentally-friendly and safe property and wide application, and a preparation method thereof. The environmentally-friendly aqueous leather stamp-pad ink comprises an organic solvent, resin, a surfactant, a pigment dispersant, an adhesion promoter, a pigment and water according to a mass ratio of (15-28):(30-40):(1-2):(2-5):(0.5-1):(10-15):(30-40). The environmentally-friendly aqueous leather stamp-pad ink has good adhesion to leather, can be transfer-printed at normal temperature to form a soft imprinted film with bright color on the leather, and the imprinted film has the characteristic of acid and alkali resistance, water washing resistance, oil resistance, good weatherability and no color fading. The environmentally-friendly aqueous leather stamp-pad ink is safe and environmentally-friendly, meets safety detection standards of European Union SGS EN71-10 of textiles, accords with the limit of harmful substances in Safety of Toys - Part 10: Organic Chemical Compounds - Sample Preparation and Extraction, and has good market prospect.

The invention relates to a method for extracting lycium barbarum polysaccharide through cooperation of ultrasonic waves and a surfactant. The method comprises the steps that lycium barbarum of poor quality or lycium barbarum residues are dried in air and smashed through a smashing machine to obtain lycium barbarum powder; the lycium barbarum powder is added into a surfactant water solution with the mass percentage concentration of 0.8-1.2% according to the mass-to-volume ratio of 1:20-30, mechanical stirring is achieved for dissolving, soaking is carried out for 3-5 h at the room temperature, and feed liquid is obtained; the feed liquid is subjected to ultrasonic extraction, lycium barbarum powder is subjected to ultrasonic extraction for 3 times at the ultrasonic powder of 200-300 w, each extraction is kept 20-30 min, filtrates are combined, and a lycium barbarum polysaccharide extracting solution is obtained; filtration is carried out through a 250-350-mesh five-layer nylon net to remove lycium barbarum seeds and insoluble substance, standing is conducted for 24 h, supernatant is collected, and residues are discarded; filtration is carried out through the 250-350-mesh five-layer nylon net to remove residues, and lycium barbarum polysaccharide clean liquid is obtained; the volume is concentrated to be quarter, 3-5-fold absolute ethyl alcohol is added, and standing is carried out for 24 h; suction filtration is carried out, filtrate is abandoned, and insoluble substance is obtained; ethyl alcohol is removed, forced air drying is carried out at 60 DEG C, and lycium barbarum polysaccharide is obtained. The method has the advantages of being high in extracting efficiency, simple in steps, convenient to operate, free of pollution and nonhazardous.

The invention provides a production process of high-elasticity-feature terylene pre-oriented fibers. The production process is characterized by comprising the steps of 1) slicing a raw material, namely, modified polyester, conveying the material to a wet material bin to enable pre-crystallizing, and then ventilating and drying to obtain dry slices; 2) feeding the dry slices and an additive into a screw extrusion machine together under a melting condition, filtering and then transferring into a spinning box to obtain a melt; 3) metering the melt through a metering pump, and feeding into a spinning assembly to yield silks; 4) performing slow cooling and side blowing for the silks obtained in step 3) to cool and shape, and then applying oil; 5) pulling, stretching, and thermally shaping; 6) coiling through a coiling head to obtain the high-elasticity-feature terylene pre-oriented fibers. The high-elasticity-feature terylene pre-oriented fibers prepared by the production process have the advantages that the specification is up to 180dtex / 36f, the breaking strength is not less than 1.80cN / dtex, the elongation at break is 200+ / 30; the softness, sense of touch and rebound elasticity are superior to those of the general fibers, and moreover, the water absorbing performance, the oil absorbing performance and the cleaning function are high.

The invention discloses a production method of Europa suede-feel polyurethane synthetic leather, which comprises the following steps: firstly, preparing semifinished synthetic leather by using a wet method; secondly, hot-joining the polyurethane slurry layer, which is formed after the pattern of release paper is transferred, onto the surface of the semifinished synthetic leather which is printed by the wet method, wherein the polyurethane slurry comprises the following raw materials in parts by weight: polyester-polyether copolymer resin SF-01, 3-7 parts of expanded micro particle, 8-12 parts of butanone, 5-10 parts of solvent-type pigment and 0.2-0.5 part of modified silicone high polymer BYK-95950; thirdly, embossing and foaming by using embossing rollers; and finally, crinkling. The invention enables the surface of the polyurethane synthetic leather to have strong suede feel and barbing effect. The polyurethane synthetic leather has the advantages of high wear resistance, high peeling, high cold resistance, high hydrolysis resistance and other physical properties. The polyurethane synthetic leather is exactly like leather and is high-quality environmental-protection high-grade synthetic leather. The whole process conforms to the requirements of environmental protection, and conforms to the development trend of professional shoe materials in modern times.