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50results about How to "Large expansion force" patented technology
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Safety syringe
ActiveUS20100042053A1Large expansion forceSufficient terminal forceInfusion syringesInfusion needlesNeedle safetyBiomedical engineering
Owner:PROTECTUS MEDICAL DEVICES
Tee joint type automatic temperature control valve
InactiveCN1696553ALarge expansion forceSensitive to temperatureOperating means/releasing devices for valvesMultiple way valvesAutomatic controlTemperature sense
The present invention relates to a three-way automatic temperature control valve capable of utilizing medium self-body temperature to control opening and closing of high-temperature medium channel and low-temperature medium channel of valve. Said three-way automatic temperature control valve includes the following components: valve body, low-temperature hole valve seat, high-temperature hole valve seat, low-temperature hole valve flap, high-temperature hole valve flap, regulation screw ring, temperature-sensing element, pushing bar and reset spring, etc.
Owner:温强
Preparation method of size controllable graphene nanoplatelets
The invention discloses a preparation method of high-specific surface area size controllable graphene nanoplatelets. The preparation method is applicable to large-scale production of graphene and comprises the following steps: (1) with large-particle size expandable graphite as a raw material, preparing high-expansion rate expandable graphite; (2) with organic matters as intercalation materials, blending and inserting the organic matters into the lamellas of the expandable graphite together to prepare an expandable graphite / organic matter composite material; (3) crushing the blend into a certain size by using a crusher; and (4) burning at a high temperature in a certain atmosphere and carrying out expansion stripping to obtain the graphene nanoplatelets of a certain size. The preparation method disclosed by the invention is capable of preparing the size controllable graphene nanoplatelets at a large batch and a low cost; therefore, the problems of low yield, small size, high cost and the like in an existing graphene preparation technology are solved.
Owner:XIAMEN KNANO GRAPHENE TECH CORP
Concrete beforehand pore-forming static breaking technology
InactiveCN102127975AFlexible placementIncrease inner diameterBuilding repairsChemical reactionWorking capacity
The invention provides a concrete beforehand pore-forming static breaking technology. A plurality of containers with a certain sizes, shapes and amounts are embedded in a concrete member before the concrete is cast, a plurality of orifices are arranged above the containers, the inner diameters of the orifices are less than the inner diameters of the containers, and the orifices are extended to the edge of the concrete member. When the concrete member needs to be disassembled, the expanding agent is filled into the containers along with the orifices, the expanding agent is chemically reacted in the containers to generate the expansibility, the concrete member is expanded to be broken, and the whole process is free of noise, vibration and slungshots. Compared with the normal pore-forming type static breaking technology, the expansibility is larger, the expanding agent can be effectively avoided to be sprayed out of the orifices, and the construction is safe and environment-friendly; and the drilling working capacity is eliminated, so that the cost can be reduced, and the disassembly construction period can be shortened, therefore, the technology is suitable for the static breaking of engineering temporary facilities.
Owner:葛培中
Soundless cracking agent and production process thereof
The invention discloses a soundless cracking agent and a production process thereof. The soundless cracking agent is prepared from the following raw materials by mass percent: 85 to 95 parts of calcium oxide, 2 to 10 parts of fly ash, 2 to 8 parts of cement clinker, 0.2 to 0.8 parts of water reducer and 0.1 to 0.7 parts of sodium citrate. The cracking agent has advantages of simple production technology, convenient operation, large expansibility and easily-controlled reaction time, and is not high in requirements of the raw materials and wide in temperature range.
Owner:邵付报
Measuring underground pressure
InactiveUS20170073919A1Specific resistanceLarge expansion forceElectrical/magnetic solid deformation measurementMechanical solid deformation measurementsSoil strengthEngineering
The present invention relates to in-place soil stabilization. Specifically, the present invention relates a method and device for measuring the increase in subsurface earth pressure or soil displacement during the injection of a stabilizing agent into the soil and prior to surface movement. The rise in sensor pressure or displacement of soil indicates an increase in soil strength and bearing capacity. Therefore, real-time monitoring of these pressures or movements may serve as a guide during the injection process.
Owner:URETEK USA
Lentinus edodes dietary fiber slice and preparation method thereof
The invention discloses a Lentinus edodes dietary fiber slice. According to the invention, insoluble dietary fibers (IDF) of Lentinus edodes are used as a raw material; combined technologies of high pressure cooking and high pressure homogenization are employed to process IDF in the root of Lentinus edodes, and raw materials like an emulsification stabilizing agent and a thickening agent are cooperatively used to prepare the Lentinus edodes dietary fiber slice. The modified Lentinus edodes dietary fiber slice provided in the invention has high content of fibers, low fat and a low calorific value, total content of dietary fibers in the slice is more than 80%, and the dietary fibers have obviously improved water binding capability, water holding capability and expansibility.
Owner:CHINA JILIANG UNIV
Static crushing agent used cooperatively with down-the-hole drill
The invention belongs to a novel static crushing agent. The novel static crushing agent can be used cooperatively with a down-the-hole drill, and the aperture is 75-105mm. Over burnt lime undergoes ball milling or Raymond mill reduction until the specific surface area is 2100-2700cm<2> / G. The static crushing agent is prepared by mixing 43-70% of the exciting agent over burnt lime with 30-40% of a setting and hardening agent, 2-5% of a setting promoting reinforcing agent, 0.05-0.1% of a water reducer and 5-14% of a retardant. The problems of high labor cost and low efficiency caused by only use of an artificial small-aperture rock drill in previous static crushing construction are solved. The static crushing agent has the advantages of large crushing power, high mechanization degree, high construction efficiency and the like.
Owner:张建彪 +1
Preparation method of auricularia polysaccharide with hypoglycemic effect
The invention discloses an extraction method of auricularia polysaccharide. The method comprises the following steps: carrying out mechanical coarse grinding on dried fruiting body of auricularia auricular, mixing the ground fruiting body of auricularia auricular with deionized water and fully swelling, freeze-drying, carrying out mechanical rough segmentation, homogenizing by a high pressure homogenizer, fully oscillating and mixing the auricularia auricular ultrafine-ground paste and fresh saliva, adding deionized water, adjusting pH to 1.7-1.9, adding artificial gastric juice, stirring, carrying out water-bath insulation, maintaining pH of the system to 6.6-7.0, adding a pancreatin solution, stirring, carrying out water-bath insulation, warming up and carrying out enzyme deactivation, centrifuging a mixed liquor, taking a supernatant, adding a mixture of diatomite and active carbon, fully stirring and filtering, taking a filtrate, carrying out membrane filtration by the use of a polysulfone membrane, collecting a small molecular solution, and drying to obtain auricularia polysaccharide. By the ultralow-temperature homogenization technology and by synergism of saliva and artificial gastric juice, hypoglycemic activity of polysaccharide is ensured when polysaccharide is fully dissolved out, and polysaccharide obtained has high purity and less damage to activity.
Owner:CHINA JILIANG UNIV
Horizontal well bushing shaping repair method and device
ActiveCN104499977ASolve the technical problems of plastic surgeryMeet plastic repair needsBorehole/well accessoriesEngineeringMechanical engineering
The invention relates to a horizontal well bushing shaping repair method and device. The method comprises putting energetic materials in a down-hole horizontal well tube sleeve to be shaped and repaired, and energy replaced by energetic materials is used for impacting on and loading the inner wall of the horizontal well tube sleeve to be shaped and repaired to enable the diameter of the horizontal well tube sleeve to be shaped and repaired to be expanded to recover the through diameter in the tube. The device comprises an igniter, an integrated drift diameter gauge, at least one shaping gun component and a gun tail. The energetic materials are one type of power sources. The method and the device have the advantages that the energy release speed is high, the diameter expanding force is large, ground rotation, lifting and down impact force are not needed, centering of the device is not required, no litters are produced, capable of solving the technical problem of horizontal well bushing shaping, meeting the current growing horizontal well bushing shaping repair requirement and applicable to shaping repair of various bushings of vertical wells, inclined wells, branch wells and the like.
Owner:NORTH SCHLUMBERGER OILFIELD TECH XIAN
Gas expansion device and machining method and application of neckings of expansion pipe
The invention discloses a gas expansion device and a necking processing method and application of an expansion tube. The expansion device includes an expansion tube and an inflatable ignition head. The method is to fix the expansion tube through the clamp first, then rotate the expansion tube and heat the end of the expansion tube through the clamp, heat the end of the expansion tube until it is close to or reach plastic deformation, and after the front part of the shrinking mold touches the end of the expansion tube, The end of the expansion pipe moves from the front to the rear of the shrinking die, and the shrinking die extrudes and thickens the end of the expansion pipe, and the end of the shrinking end is thickened axially outward, and then the end of the expansion pipe is processed with a through-hole knife. Through-hole fixed aperture. The expansion tube is made into a pressure vessel by shrinking. The utility model has the advantages of simple structure, easy processing of structural components, low manufacturing cost, no flying head, no air leakage, safe transportation, no hidden danger of squib, and large expansion force.
Owner:郭远军
Deep plugging agent containing wood dust and gel
InactiveCN1654591ARealize liquid flow diversionEffective blockingSealing/packingWater circulationChemistry
The deep wood chip gel plugging agent is used in water injecting well to plug the high penetrating band in thick oil stratum to lower ineffective water circulation. The deep plugging agent consists of high molecular weight anionic polyacrylamide of molecular weight over 19 million and hydrolysis degree of 25-30 % 0.15-0.5 wt%, phenol compounded polyamine 0.1-0.3 wt%, resorcinol 0.01-0.02 wt%, oxalic acid 0.1-0.2 wt%, wood chip 0.5-2.5 wt% and water 96.48-99.14 wt%, which are compounded into water solution of 0.86-3.52 wt% water solution. The present invention has low use concentration, controllable gel forming time and viscosity, low cost and simple compounding process.
Owner:DAQING OILFIELD CO LTD
Efficient static fracturing agent and preparation technology thereof
The invention relates to an efficient static fracturing agent and a preparation technology thereof. The efficient static fracturing agent is mainly used for concrete structures, silent crush and removal of rock, and exploitation of precious rocks such as marble, granite and the like. The efficient static fracturing agent is prepared from calcium oxide, limestone, alumina, amino silicone and ettringite in parts by weight. The invention has the advantages of big expansibility, short reaction time, wide adaptive temperature range, low cost, short preparation time, good mobility, reliable performance and is simple to operate in construction and safe to use, the work efficiency is improved, the efficient work time is utilized greatly, and the broken shape of the rock can be controllable.
Owner:宋德臣
Silicon carbon cathode material and preparation method thereof, power battery and electric vehicle
InactiveCN109585838ALarge expansion forceHigh reversible capacitySecondary cellsNegative electrodesPower batteryHigh rate
The invention provides a silicon carbon cathode material and a preparation method thereof, a power battery and an electric vehicle. The preparation method of the silicon carbon cathode material includes the following steps: a silicon substrate is subjected to lithiation treatment to obtain a silicon lithium alloy; and a carbon functional layer is formed on an outer surface of at least part of thesilicon lithium alloy to obtain the silicon carbon cathode material. The method is simple, convenient, and easy to implement, and industrialized production can be easily realized. The silicon carbon cathode material prepared by the method has enough expansion space between the silicon substrate and the carbon functional layer even if when the silicon carbon cathode material is recharged again andexpands after the volume of the material is reduced by discharge. The expanded silicon substrate will not have a large expansive force on the carbon functional layer, so that the carbon functional layer formed on a surface of the silicon substrate is relatively complete, and more carbon functional layers will not be formed for better performance, thus the reversible capacity of silicon carbon cathode material is improved, reversible circularity is improved significantly, the service life is prolonged significantly, the multiplying power is significantly increased and high-rate charge and discharge cycles can be performed.
Owner:SVOLT ENERGY TECHNOLOGY CO LTD
Vacuum cartridge fuse and process for manufacturing the same
ActiveCN101281838AImprove overall lifespanExtend your lifeFuse device manufactureHigh frequency current welding apparatusEngineeringSoldering
The present invention relates to a cartridge fuse and a manufacturing technique for the cartridge fuse, in particular to a vacuum cartridge fuse and a manufacturing technique for the cartridge fuse. The interior of main body of the cartridge fuse is in vacuum state. The present invention utilizes high frequency welding technique to solder a fuse, a tube, and a tinned copper cap together as follows: high frequency current is provided by a high frequency welding machine, an enclosed soldering cavity that can be opened is arranged, alternating magnetic field is produced by the high frequency current in the enclosed soldering cavity, the frequency and time of the high frequency current is controlled, so that the tin on the tinned cap is melted and therefore the soldering is completed in the enclosed soldering cavity. The copper cap on one end is soldered with high frequency welding technique; before the other end is soldered, the cavity is pumped into vacuum state to attain the purpose of protecting the finished product of cartridge fuse.
Owner:DONGGUAN BETTER ELECTRONICS TECH +1
Preparation method of body slimming and preserving nutritious food
InactiveCN107594546AReduce baking timeReduce energy consumptionCultivating equipmentsSoilless cultivationCooking & bakingAdditive ingredient
The present invention discloses a preparation method of body slimming and preserving nutritious food and belongs to the technical field of food productions. Black beans are germinated, the germinatedblack beans are subjected to a microwave aging, the aged black beans are crushed, corn seed coats are subjected to a supercritical extraction to prepare dietary fibers, the dietary fibers are subjected to a microwave aging, the aged dietary fibers are crushed, and then the materials are mixed with microwave aged and crushed black sesame seeds, black rice, black mulberries, black Chinese wolfberryfruits and other black food to prepare a finished product. The produced nutritious food by the method can greatly save baking time, reduces energy consumption and reduces pollution. The product is rich in rare nutrients produced by the germination of the black beans. At the same time, the manufactured corn seed coat dietary fibers by the supercritical extraction technology can also effectively increase expansion force and water-holding properties of the product. The nutritious food improves body fullness, the preparation method improves product brewing viscosity and enhances mouthfeel and smooth properties, and the nutritious food is easy to carry and eat.
Owner:JILIN WEIYIKANG BIOLOGICAL SCI & TECH
Flexible expansion device and manufacturing method thereof
InactiveCN111070519AImprove sealingStrong liftEngine sealsCoatingsStructural engineeringMechanical engineering
Owner:CHENGDU YIHEYUAN TECH CO LTD
Lotus seedpod dietary fiber vermicelli and preparation method thereof
ActiveCN104872530AUnique flavorIncrease elasticityFood ingredient as flavour affecting agentFood preparationFlavorFiber
The invention discloses lotus seedpod dietary fiber vermicelli which comprises the following ingredients, by weight, 4-6 parts of lotus seedpod dietary fiber, 95-105 parts of flour, 0.1-1.5 parts of salt and 35-39 parts of water. The invention also discloses a preparation method of lotus seedpod dietary fiber vermicelli. The preparation method comprises the following steps: preparing lotus seedpod dietary fiber, mixing, standing, pressing flour, drying and preparing the lotus seedpod dietary fiber vermicelli. As the modified lotus seedpod dietary fiber is added into vermicelli, the lotus seedpod dietary fiber vermicelli has fine mouthfeel, little impurity sense and peculiar color and flavor and contains relatively high addition amount of dietary fiber.
Owner:湖北小胡鸭酱卤食品研究院有限公司
A rapid drying device and a control method
InactiveCN108265496APrevent clothing from slippingPrevent slippingIroning apparatusOther drying apparatusEngineering
The invention relates to the field of clothes dryers, in particular to a rapid drying device and a control method. The rapid drying device comprises a pedestal, an air bag arranged on the pedestal andused for sleeving clothes, and a drying device sending drying air into the air bag. The air bag has a limiting structure which can prevent clothes from sliding after the air bag is inflated. Throughstructural design, clothes are not liable to slide relative to the air bag after the air bag swells, so that the problem that the clothes drying speed is influenced by clothes piling is solved and folds of clothes caused by sliding and piling can be prevented.
Owner:QINGDAO HAIER WASHING MASCH CO LTD
Gas expansion device, throat machining method of expansion pipe and application
InactiveCN107063013AImprove adsorption capacityEasy accessShaping toolsDisloding machinesEngineeringMachining
The invention discloses a gas expansion device and a necking processing method and application of an expansion tube. The expansion device includes an expansion tube and an inflatable ignition head. The method is to fix the expansion tube through the clamp first, then rotate the expansion tube and heat the end of the expansion tube through the clamp, heat the end of the expansion tube until it is close to or reach plastic deformation, and after the front part of the shrinking mold touches the end of the expansion tube, The end of the expansion pipe moves from the front to the rear of the shrinking die, and the shrinking die extrudes and thickens the end of the expansion pipe, and the end of the shrinking end is thickened axially outward, and then the end of the expansion pipe is processed with a through-hole knife. Through-hole fixed aperture. The expansion tube is made into a pressure vessel by shrinking. The utility model has the advantages of simple structure, easy processing of structural components, low manufacturing cost, no flying head, no air leakage, safe transportation, no hidden danger of squib, and large expansion force.
Owner:郭远军
Rivet part with double expansion function
InactiveCN108953337AAchieve expansionLarge expansion forceRivetsMaterial gluingInverted-T shapeExpansion joint
The invention discloses a rivet part with a double expansion function. The rivet part comprises a rivet and an expansion unit, the rivet comprises a rivet body and a rivet cap, the rivet body is provided with an expansion slot, the expansion slot is arranged in an inverted T shape and comprises a horizontal portion and a vertical portion, the expansion unit comprises an expansion component arranged at the horizontal portion of the expansion slot in an inlaid manner and an abutting pressing column arranged at the vertical portion of the expansion slot, the expansion component comprises two expansion bodies symmetrically arranged on two sides of the abutting pressing column and having sections being in right trapezoids, slopes of the expansion bodies are arranged to face the abutting pressing column, the side wall of the abutting pressing column is provided with position-limiting blocks, the position-limiting blocks are used for limiting the movement position of the abutting pressing column in the axial direction of the abutting pressing column, the bottom shape of the abutting pressing column is matched with the two expansion bodies, and the abutting pressing column moves in the vertical direction to abut and press the expansion bodies to move in the left and right direction. The rivet part with the double expansion function at least has the following advantages that double expansion can be realized well, and the expansion strength of riveting joints is guaranteed.
Owner:SUZHOU ICOOLMACH EQUIP MFG
Lotus seedpod dietary fiber cake and preparation method thereof
ActiveCN104757061AIncrease soluble dietary fiber contentImprove water holding capacityDough treatmentBakery productsFiberFlavor
The invention discloses a lotus seedpod dietary fiber cake. The lotus seedpod dietary fiber cake is prepared from such components in parts by mass as 9-11 parts of lotus seedpod dietary fiber, 95-105 parts of special flour for the cake, 90-110 parts of fresh eggs, 90-110 parts of powdered sugar, 9-11 parts of quick expanding egg oil, 1-2 parts of baking powder and 0.5-1.5 parts of edible salt. The invention also discloses a preparation method of the lotus seedpod dietary fiber cake; the preparation method comprises the steps of preparing the lotus seedpod dietary fiber, weighting, preparing an egg liquid, preparing a paste, injecting into a mold, and baking to prepare the lotus seedpod dietary fiber cake. The lotus seedpod dietary fiber is modified and then added to the cake, and the cake is fine and smooth in taste, few in impurities, even in structure and special in color and luster and flavor; in addition, the addition amount of the lotus seedpod dietary fiber is relatively high. In addition, the lotus seedpod sources are rich; the preparation technique of the dietary fiber is simple and convenient for industrialization; in short, the preparation method of the lotus seedpod dietary fiber cake is wide in application prospect.
Owner:良品铺子营养食品有限责任公司
Method and device for removing part of concrete structure
InactiveUS7185954B2Large expansion forceExpansive forceFlexible wall reciprocating enginesDisloding machinesReinforced concreteBoundary plane
This invention refers to a method for removing a part of concrete construction that comprises a base concrete; a reinforced concrete formed on the base concrete; rebars embedded in the base concrete and upwardly extending through the reinforced concrete; the method comprising the steps of: forming a slit in the reinforced concrete and disconnections at an intermediate of the rebars; applying an expansion force on opposite surfaces of the slit in the reinforced concrete to simultaneously break a boundary plane of the reinforced concrete; and removing the moved portion of the reinforced concrete from the base concrete as a scrap. Also, the present invention provides a flat jack suitable to break boundary planes of the scrap wherein the flat jack comprises two metallic plates joined to each other, and an inlet for introducing into the jack pressurized fluidic material to inflate the jack in order to produce a great expansive force.
Owner:ASAKURA KENSUKE
Motor stator coil and in-wire embedding slot insulation paper shaping device
ActiveCN106253593ALarge expansion forceLook at creepage distanceApplying solid insulationSlot insulationStator coil
The invention discloses a motor stator coil and in-wire embedding slot insulation paper shaping device. The device includes a hole-outside coil shaping device and a expanding device for expanding and shaping an in-hole coil; the expanding device comprises a mold core and an expansion pushing head which can move along the axial direction of the mold core; the expanding device comprises a plurality of expanding sheets which can move along the radial direction of the mold core; one end of each expanding sheet passes through an assembling slot and thereafter abuts against one end of the expansion pushing head, or a gap is left between the one end of the expanding sheet and the one end of the expansion pushing head; at least one part of each of the corresponding surfaces of the expanding sheet and the expansion pushing head is an oblique surface or a conical surface; and the other end of the expanding sheet is provided with a portion which abuts against a hole-outside coil and a portion which abuts against an in-hole coil, wherein the portion which abuts against the hole-outside coil and the portion which abuts against the in-hole coil are not located in the same circumferential surface. With the motor stator coil and in-wire embedding slot insulation paper shaping device of the invention adopted, after a stator coil is shaped, a creepage distance between the coil and a rotor can be increased.
Owner:CHANGZHOU JINKANG PRECISION MECHANISM
A kind of garlic straw active dietary fiber and its preparation method
ActiveCN105029451BAvoid pollutionIncrease added valueFood ingredient functionsLiquid ratioHydrolysate
Owner:JIANGSU UNIV
Preparation method of health-care dietary fiber meal replacement powder
PendingCN113796495AAvoid wastingPrevent extractionFood ingredient as taste affecting agentNatural extract food ingredientsBiotechnologyMeal replacement
The invention relates to the technical field of food processing, in particular to a preparation method of health-care dietary fiber meal replacement powder. The health-care dietary fiber meal replacement powder is prepared from the following raw materials in parts by mass: 20-40 parts of soybeans, 20-60 parts of flammulina velutipes, 5-10 parts of sea-buckthorn, 5-10 parts of passion fruits, 1-5 parts of compound probiotics and 3-15 parts of a flavoring agent. The prepared meal replacement powder has good swelling and digestion promoting effects, can inhibit fat absorption of a human body, and has the effects of good taste, strong satiety, balanced nutrition, dietary fiber and health care.
Owner:韦小玉
Tee joint type automatic temperature control valve
InactiveCN100363663CHigh temperature control accuracyStable jobOperating means/releasing devices for valvesMultiple way valvesTemperature controlAutomatic control
The present invention relates to a three-way automatic temperature control valve capable of utilizing medium self-body temperature to control opening and closing of high-temperature medium channel and low-temperature medium channel of valve. Said three-way automatic temperature control valve includes the following components: valve body, low-temperature hole valve seat, high-temperature hole valve seat, low-temperature hole valve flap, high-temperature hole valve flap, regulation screw ring, temperature-sensing element, pushing bar and reset spring, etc.
Owner:温强
Turbine disc with self-lubricating structure for micro gas turbine
InactiveCN112324569ASimple structureEasy to useBlade accessoriesGas turbine plantsCombustion chamberGear wheel
The invention discloses a turbine disc with a self-lubricating structure for a micro gas turbine. The turbine disc comprises a gas turbine shell, a first rotating shaft, a motor, a first limiting disc, a first rotating hole, a second rotating shaft, a first blade, a driving gear, a third rotating shaft, a second blade, a driven gear, a second limiting disc, an inner gear, an air inlet, a combustion chamber, a fuel nozzle, an igniter, a turbine disc body, an exhaust pipe, a heat exchanger, an exhaust port and a filter screen. The turbine disc is simple in structure and convenient to use, through cooperation of the motor, the first limiting disc, the second rotating shaft, the first blade, the driving gear, the third rotating shaft, the second blade, the driven gear, the second limiting discand the inner gear, the structure is simple, and the purposes of controlling air flow and compressing the air are achieved through fine adjustment of the angle of the first blade and the angle of thesecond blade; and through cooperation of the exhaust pipe, the heat exchanger, the exhaust port and the filter screen, the influence on the external environment is reduced, and the using is convenient.
Owner:杭州萧山技师学院
Preparation method of graphene microsheets with controllable size
ActiveCN103601179BHigh combustion enthalpyLarge expansion forceGrapheneCombustionHigh volume manufacturing
Owner:XIAMEN KNANO GRAPHENE TECH CORP
A horizontal well casing shaping and repairing method and device
ActiveCN104499977BSolve the technical problems of plastic surgeryMeet plastic repair needsBorehole/well accessoriesLitterEngineering
Owner:NORTH SCHLUMBERGER OILFIELD TECH XIAN
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