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181results about How to "Obvious benefits" patented technology

Secure electronic healthcare information management process and system

The invention pertains to a healthcare information management system which enables a patient to take possession and control of his healthcare information provided by a plurality of generally unrelated healthcare practitioners and pharmacies, comprising a central database, a portable access device provided to each patient, and a computer system at each health care practitioner and pharmacy. Methods are provided for improved electronic prescription preparation and fulfillment based on comprehensive medical information stored in the system.
Owner:TANGELLAPALLY MAHESH +1

Method and device for interworking between internet protocol networks

Embodiments of the present invention provide a method and device for interworking between Internet Protocol (IP) networks of. The method includes: judging whether the home network of a called UE supports the IP version of a calling UE, and forwarding a message sent from the calling UE to a home calling state control device of the called UE if yes, otherwise, performing an IP version transformation of the message and sending the message to the home calling state control device of the called UE; judging whether the called UE supports the IP version of the message, forwarding the message to the called UE if yes, otherwise, performing an IP version transformation of the message and sending the message to the called UE. The method and device can reduce unnecessary transformation between different IP versions and improve the interworking between IP networks when the IP Multimedia Subsystem (IMS) is employed.
Owner:INVT SPE LLC

Production method of high purity oligoxylose

A high-purity oligoxylose is prepared from corn cob through pretreating by diluted acid, digestion, enzymolyzing by xylanase, refining, ultrafiltering, and nano filtering. Its advantages are high purity (90%) and low cost.
Owner:河南益常青生物科技有限公司

Preparation method of hexamethylenediamine

The invention discloses a preparation method of hexamethylenediamine. The method is used for preparing 1, 6-hexamethylenediamine by virtue of carrying out ammoniation and catalytic hydrogenation on 1, 6-adipaldehyde. The method is simple in process, low in cost, high in yield, low in energy consumption and free from industrial three wastes.
Owner:BEIJING RISUN TECH CO LTD

Locating terminal, system and method for realizing locating service by using same

The invention discloses a locating terminal, a system and a method for realizing locating service by using the same. The locating terminal comprises a wireless communication module, a master control board set, an authentication module, a power module and an antenna, wherein, the power module is used for supplying power for the wireless communication module and the master control board set; the authentication module is used for interacting with external through the wireless communication module and the antenna for registering and authenticating, and is connected with communication websites; thewireless communication module is used for being connected with the communication network and acquiring code information of the current base station to which the locating terminal belongs under the control of the master control board set; the master control board set is used for controlling the authentication module to interact with external through the wireless communication module and the antenna for registering and authenticating, and notifying the wireless communication module to acquire code information of the current base station to which the locating terminal belongs; and the code information of the current base station to which the locating terminal belongs is sent out through the wireless communication module and the antenna.
Owner:MEIZIJING NETWORK TECH BEIJING

Intelligent power distribution network outdoor broken circuit monitoring device

The invention discloses an intelligent power distribution network outdoor broken circuit monitoring device. The intelligent power distribution network outdoor broken circuit monitoring device comprises a breaker main body; the breaker main body is provided with a power supply module, a control module and a sampling module; the control module and the sampling module are respectively connected to the power supply module; the control module comprises a single-chip microcomputer controller, a signal processing module and an intelligent driving controller; and the control module and the sampling module are connected through a transmission module. The intelligent power distribution network outdoor broken circuit monitoring device can realize a function of switching on and off a circuit load and isolating a fault, realizes an on-site control operation and realizes a remote control operation through a front end collection device receiving a system order. The intelligent power distribution network outdoor broken circuit monitoring device not only finishes data collection, wherein the data includes data of three-phase current, voltage, a breaker state, etc, but also realizes remote fault alarm, and can detect an interphase short circuit fault of the circuit, a single-phase grounding fault and transmits fault information to an automation main station.
Owner:NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER

Axle steel and continuous casting method thereof

The invention belongs to the technical field of steel for vehicles, and particularly relates to axle steel and a continuous casting method thereof. The method includes the steps that firstly, a continuous casting machine is used for casting, withdrawal speed of a casting blank is 0.45-0.65 m / min, and electromagnetic stirring is conducted on a crystallizer and a solidification end; secondly, it is guaranteed that the superheat degree of tundish molten steel in the continuous casting process is 20-30 DEG C; thirdly, the solidification end large reduction technology is used, and the reduction of the continuous casting blank solidification end is increased; fourthly, the dynamic secondary cooling control technology is used, and it is guaranteed that the cooling process of the casting blank is uniform and stable; fifthly, a rear region strong cooling secondary cooling scheme is adopted in secondary cooling, cooling intensity is improved, the specific water ratio is 0.40-0.50 kg / t steel, and the temperature of the surface of a casting blank straightening area is 800-900 DEG C. The continuous casting method of the axle steel can remarkably improve compactness and homogeneity of the casting blank.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP

Tunnel lining trolley with push-pull end die and secondary tunnel lining pouring method implemented by same

The invention belongs to the technical field of lining trolleys for tunnel engineering construction processes, and particularly relates to a tunnel lining trolley with a push-pull end die and a secondary tunnel lining pouring method implemented by the same. The problems that the quality is difficultly ensured and the construction time is difficultly ensured in the conventional secondary tunnel lining construction are solved. A plurality of adjacent guide steel frames are sequentially welded in the circumferential direction of the periphery of the rear end of the lining trolley, and an end blocking steel template capable of sliding and being fixed relative to each guide steel frame is arranged in each guide steel frame. The secondary tunnel lining pouring method comprises the following steps of: continuously pushing the end blocking steel templates after the lining trolley is in place, screwing down compression bolts, clamping a reverse check device, and casting concrete to form a secondary tunnel lining. The invention has the advantages of effectively solving the problem of additionally erecting a die by manpower, ensuring the construction quality of the secondary lining, saving the die erecting time of the secondary lining, greatly improving the effect of the secondary lining construction and achieving remarkable effect of shortening the construction period of the whole tunnel building engineering.
Owner:CHINA RAILWAY NO 3 GRP CO LTD

Heat pump double water circulation system for ocean thermocline emulation test platform

This invention is a heat pump double water circulating system of sea thermocline simulation test bed. It belongs to the field of ocean ship engineering technology. It includes water groove, compressor, condenser, temperature controlling expansion valve, evaporator, back water pump, flowmeter, cold water tank, cold water pump, hot water pump, globe valve, water compensating valve, frequency conversion controller, control element and thermometer. This invention uses heat pump double water circulating system, which makes water conveniently transfer heat and reach the needed temperature. The cold and hot water in the water tank is controlled within 0.1m / s-0.6m / s. The temperature of cold and hot water is controlled within 8deg.C-15deg.C. It stimulates the temperature distribution and flow state of sea thermocline under the control of human being. It can greatly save the water resource and electric energy.
Owner:SHANGHAI JIAO TONG UNIV

Measuring receptacle having angled lines

This invention relates to a receptacle (1) capable of holding fluid and having one or more sets of fluid level indicators, wherein a set of fluid level indicators (3) comprises at least two markings (5), characterized in that when the level indicators are viewed during use of the receptacle, the markings do not extend to the pouring mouth of the receptacle (7).
Owner:MEASURITE CORP

Method and Apparatus for Service Identifying and Routing in Multimedia Broadcast/Multicast Service System

Embodiments of the present invention disclose a method and apparatus for service identifying and routing in a multimedia broadcast and multicast service (MBMS) system. The apparatus includes a radio access network equipment (RNC) and a core network equipment (CN) communicating with each other via an Iu connection; CN includes a module for service information transmission which is used to send the identity information corresponding to the service the UE joins to RNC, and RNC includes a module for service identifying and routing which is used to identify the service according to the identity information and determine the routing of the MBMS service in the non access stratum. RNC obtains the identity information corresponding to the service the UE joins through interaction of interface information with CN, identifies the service and determines the routing of the MBMS service in the non access stratum.
Owner:HUAWEI TECH CO LTD

Method for producing grape skin health-care beverage

The invention relates to a method for producing grape skin health-care beverage and belongs to the technical field of beverage processing. The method comprises the following steps of: selecting and cleaning fresh grape skin serving as a raw material; adding 0.02 percent of isoVc sodium and 0.15 percent of citric acid to protect color; crushing and pulping the grape skin to prepare grape skin pulp; promoting composite enzymolysis ultrasonically; filtering by using a filtering material with 100 to 350 meshes or performing centrifugal separation at 3,000 to 5,000 r / min; mixing; performing vacuumdegassing under vacuum degree of 0.09 MPa for 20 to 25 minutes; homogenizing under 30 to 40 MPa; after performing encapsulation, performing sterilization at the temperature of between 135 and 150 DEGC for 35 to 60 seconds; cooling; performing labeling; spraying codes; and preparing the finished product after the product is inspected to be qualified. In the method, the enzymolysis reaction time is shortened by 50 percent and the enzyme adding amount is reduced by 20 percent, so that enzymolysis efficiency is improved and production cost is reduced. The processed health-care beverage has rich nutrients and good quality and is suitable for people of all ages to drink. The quality guarantee period of the beverage is more than 12 months. By the method, the grape skin is utilized at high value; waste is changed into treasure; and obvious economic, social and ecological benefits are achieved.
Owner:内蒙古云飞酒业有限公司

Combined treatment method for rear earth smelting/separating wastewater

The invention provides a combined treatment method for rear earth smelting / separating wastewater. The combined treatment method comprises the following steps of: precipitating the wastewater by using acidic oxalic acid to regulate the acidity of the saponified wastewater, so that most of oxalic acid and rare earths in the wastewater are separated out in the form of precipitate; demulsifying the emulsified organic phase under assistance of ultrasonic waves, and the recovering the organic phase and rare earth oxalates through clarification and phase separation; continuously neutralizing the water phase, from which the oil phase and the solid phase are separated, by using lime slurry until the pH value is in the range from 10 to 11; and then performing clarification and filtering so that heavy metals Pb and Cr and most of residual organic extracting agent and solvent are removed, then introducing electrolytic oxidation-reduction extracting tail gas to absorb the wastewater, and oxidizing the residual reducing substances (including oxalic acid, ammonium and organic substances) in the wastewater by using ClO<->, Cl2 and the like in the tail gas, thereby achieving the purposes of reducing ammonia nitrogen, organophosphorus and COD (Chemical Oxygen Demand) concentration in the wastewater. According to the method provided by the invention, the reactivity among the effective components in the wastewater is effectively utilized so that valuable materials are recovered and harmful materials are removed; and therefore, dual goals of resource recovery and environmental protection are achieved.
Owner:北方稀土(全南)科技有限公司 +1

Toad early-breeding high-yield three-dimensional factory cultivation method and application

InactiveCN106508794ASolve the problem of long-term reproductionImprove the ecological environmentPlant protectionAnimal husbandrySeeds sourceGreenhouse
The invention discloses a toad early-breeding high-yield three-dimensional factory cultivation method. The method is characterized in that wild toad is selected as a seed source to enter a greenhouse on every first month of the lunar year for artificial breeding, the temperature and humidity inside the greenhouse are controlled to reach the best toad hatching temperature, artificial feeding is performed, Chinese herbal medicine is adopted for performing disease prevention and treatment, artificial propagation can be performed all year round, meanwhile, the cultivated toad is placed into a tea garden for green management of insect pests, and the method has the advantages of being simple, high in reproductive rate and good in control efficiency.
Owner:溧阳市金泉生态科技园有限公司 +2

Wide-range high-precision micro current measurement system and method

The invention relates to a wide-range high-precision micro current measurement system and method. The system comprises a multiple root signal converter, an analog-to-digital conversion circuit and a microprocessor circuit, wherein the multiple root signal converter comprises a logarithmic transformation circuit, an adder and an exponential transformation circuit; the logarithmic transformation circuit receives a to-be-measured micro current signal and a reference current signal, and logarithmic transformation is carried out respectively to output two voltage signals to the adder; the adder sums up the voltage signals and the sum is transmitted to the exponential transformation circuit; the exponential transformation circuit receives the sum and carries out exponential transformation, and an analog voltage signal is outputted to the analog-to-digital conversion circuit; the analog-to-digital conversion circuit receives the analog voltage signal, converts the analog voltage signal to a digital signal and transmits the digital signal to the microprocessor circuit; and the microprocessor circuit receives the digital signal, multiple square operation is carried out to restore the valueof a to-be-measured current signal, and current measurement is completed. High measurement precision is achieved in a whole range.
Owner:BEIJING SDL TECH

Unit control system and method for energy recovery of purified terephthalic acid (PTA) device

ActiveCN105443173AReduce operation and maintenance personnelReduce operational failure pointsSteam engine plantsControl systemEnergy recovery
The invention relates to a unit control system for energy recovery of a purified terephthalic acid (PTA) device. A turbine, a speed reducer, a compressor and an expansion machine are sequentially connected. A first auxiliary system is connected with the turbine, and a second auxiliary system is connected with the compressor and the expansion machine. A control device is connected with the turbine, the compressor, the first auxiliary system and the second auxiliary system. A control method includes the steps that all valves in the first auxiliary system and the second auxiliary system are controlled to be in initial states; the turbine is started to drive the compressor unit to carry out the first time of warming, and the second time of warming is carried out after the rotating speed of the turbine reaches a first set value and is kept for set time; after the rotating speed of the turbine reaches a second set value and is kept for set time, the rotating speed exceeds a critical rotating speed value and then reaches a rated rotating speed; and anti-surge control is carried out in a rated rotating speed stage, all the valves of the second auxiliary system are controlled to be opened or closed, and the turbine is driven to keep the set rotating speed. By means of the control system and the control method, the optimal load regulation and switching are achieved, efficient gradient utilization of energy is achieved, and capacity balance of the whole control system is achieved.
Owner:SHENYANG BLOWER WORKS GRP AUTOMATIC CONTROL SYST ENG

Polyamide 6 POY/FDY composite fibre and preparation method adopting spinning-interlacing one-step process

The invention relates to a polyamide 6 POY / FDY composite fibre and a preparation method adopting a spinning-interlacing one-step process. According to the preparation method, polyamide 6 dry slices are input in a screw rod, heated, melted and filtered, and then enter a spinning manifold, a spinning melt is extruded from two metering pumps, a spinning assembly and the micropores of two spinneret plate, cooled by an annealing annular device and an annular blowing cooling device, and cured to form two bundles of yarns, and one bundle of the yarns is subjected to nozzle oiling, pre-networking, stretching and heat-setting between a first stretching roll group and a second stretching roll group, and a third yarn guide disc to obtain FDY; the other bundle of the yarns is subjected to nozzle oiling, and a yarn guide winding system device which is arranged in parallel to obtain POY; the FDY and the POY are input in a yarn combiner and interlacing nozzles simultaneously, and subjected to compounding and winding forming to prepare the polyamide 6 POY / FDY composite fibre. The polyamide 6 POY / FDY composite fibre and the preparation method have the features of fast processing speed, high yield, low production cost, and energy conservation and emission reduction; the provided product is good in interlacing degree uniformity and stability, and good in dyeing effect.
Owner:SUZHOU UNIV

Indoor distribution antenna feeder operation visualization management system

The invention discloses an indoor distribution antenna feeder operation visualization management system. A base station / repeater and an antenna feeder visualization system host machine are respectively connected with an RFID multi-frequency combiner which is connected with a mobile communication combiner. A mobile communication indoor distributed antenna is connected with the mobile communication combiner. An RFID electronic chip is connected with the mobile communication indoor distributed antenna. A network management center is connected with the antenna feeder visualization system host machine. The GSM / GPRS MODEM module of the antenna feeder visualization system host machine is connected with a monitoring control module. A radio frequency modulation and demodulation module is connected with a radio frequency output port. An RFID encoder is connected with the radio frequency modulation and demodulation module. The RFID encoder and the GSM / GPRS MODEM module are respectively connected with a communication interface module. According to the system, a mobile communication indoor distributed passive device can be monitored, the effective distance of passive radio frequency identification is extended effectively, and the system is easy and convenient.
Owner:ZUNYI BRANCH OF CHINA MOBILE GRP GUIZHOU COMPANY +1

Composite foxtail-like sophora fertilizer and its production process

A sophora alopecuroides compound fertilizer is produced with the materials including sophora alopecuroides, rapeseed oil residue, bone meal, bird excrement and humus soil, and through separatly crushing, mixing them in a certain proportion, adding water and urine, sealed fermentation, stoving, and packaging. Applying the fertilizer to fruit and melon fields can increase the yield obviously and improve the product quality.
Owner:哈力克・艾力

Novel efficient paint mist flocculant and preparation method thereof

The invention relates to a chemical agent for removing excessively sprayed oil paint waste water and a preparation method of the chemical agent, a novel efficient paint mist flocculant is characterized by comprising an adhesive-eliminating agent A and a flocculant B in volume ratio of 0.5: (0.5-1), the adhesive-eliminating agent A is polysilicic acid modified tripolycyanamide prepared from tripolycyanamide, alkali metal silicate, aldehydes and an auxiliary C, the flocculant B is a polymer formed by non-ionic monomers through polymerization. The paint mist flocculant prepared by the method is low in free formaldehyde content, low in cost and high in paint mist removing rate.
Owner:WUHAN UNIV OF TECH

Shield starting counter-force base

The invention relates to a shield starting counter-force base, which comprises a counter-force foundation base (1) and an annular supporting pier (2); the annular supporting pier (2) is arranged on the counter-force foundation base (1); and the counter-force foundation base (1) and the annular supporting pier (2) have reinforced concrete structures. By the shield starting counter-force base, the requirements of a shield machine on installation, safety starting and normal tunneling construction in a vertical well are met. The shield starting counter-force base has the advantages that: (1) a series of problems that the scale of the vertical well is expanded, the investment is increased, the construction period is delayed, the contract is changed and the like due to the 2-meter lengthening of the shield machine are avoided; and (2) the shield starting counter-force base can substitute for the conventional counter-force rack, meet the requirements of the shield machine on assembly and starting in the vertical well, is favorable for reducing the scale of the vertical well and saving the engineering investment, and can be popularized in the similar engineering.
Owner:长江设计集团有限公司

One-well two-bin type quick conveying method for deep tunnel guniting and concreting materials

The invention discloses a one-well two-bin type quick conveying method for deep tunnel guniting and concreting materials. Corresponding materials are conveyed to a stone bin, a limestone powder bin, a sand bin and a cement bin on the ground through a feeding belt conveyor, a weighing type belt feeder is arranged under the stone bin, a spiral feeder is arranged under each of the sand bin, the limestone powder bin and the cement bin, the materials are reasonably proportioned by regulating the feeding speed, and the proportioned materials are conveyed to a feeding wellhead via a belt conveyor. The guniting and concreting materials are fed from a feed inlet in periods of time, the concrete materials are led to enter corresponding underground storage bins via a prismatic buffer, and mixing and classified storage of the materials are realized. The materials are discharged to a mine car through belt feeders of lower storage bin ports, and then the materials are conveyed to a needed place via traction of an electric locomotive. Through quick classified storage and conveyance of the guniting and concreting materials, safe and quick tunneling of a mine tunnel is realized.
Owner:SHANXI LUAN ENVIRONMENTAL ENERGY DEV +1

A plant-source active feed additive and applications thereof

The invention discloses a plant-source active feed additive and applications thereof in preparation of feed for livestock and poultry. The feed additive comprises germinated-soybean powder, tea dust culture, cinnamon volatile oil and inulin in a weight ratio of 1:0.5-1:0.01-0.05:0.01-0.03. The feed additive is used for preparation of feed for livestock and poultry. The feed additive is capable of improving palatability of the feed, promoting food taking, promoting growth of the livestock and poultry, boosting immunity and anti-stress capability of the livestock and poultry, decreasing the occurrence rate of livestock and poultry diseases, effectively relieving heat stress in summer, increasing the meat factor of commodities, improving the meat quality, and largely reducing discharge of face stench. The feed additive has a good market prospect.
Owner:ZHEJIANG UNIV

Treatment technology for electroplating wastewater

The invention discloses a treatment technology for electroplating wastewater. The technology comprises the following steps of 1, collecting chromium-contained electroplating wastewater, cyanide-contaminated electroplating wastewater, a pretreatment solution, chemical nickel wastewater, pyrophosphate copper wastewater and ordinary electroplating wastewater; 2, using chromic acid in the chromium-contained electroplating wastewater for oxidizing complexes in the pretreatment solution, the chemical nickel wastewater and pyrophosphate copper wastewater; 3, using cyanide in the cyanide-contaminated electroplating wastewater for reducing remaining chromic acid of the chromium-contained electroplating wastewater to obtain sediments; 4, adjusting an ORP value and adding alkaline substances to generate sediments; 5, filtering the sediments obtained in the fourth step to obtain a supernate; 6, conducting microwave processing on the supernate, and then obtaining sediments; 7, filtering the sediments obtained in the sixth step, and completing treatment of the comprehensive electroplating wastewater. According to the technology, the treatment technology is optimized, the purification efficiency is improved, the input cost is lowered, resource waste is saved, and the effects of waste control by waste and resource reutilization are achieved.
Owner:XIAMEN TONGLIYUAN ELECTRIC EQUIP

Rapid disposal method for diseases near road manhole

The invention discloses a rapid disposal method for diseases near a road manhole. The rapid disposal method comprises the following steps: step 1, digging a foundation pit by taking a manhole mouth as a center, and cleaning the foundation pit so as to ensure that the surroundings of the manhole are clean and do not have sundries; step 2, mounting a manhole mouth template for concrete pouring according to the shape of the digged foundation pit; step 3, performing cast-in-place by adopting concrete mortar prepared in advance; and step 4, after concrete setting, dismounting the manhole mouth template, removing laitance on the surface of the concrete, performing surface galling, and then carrying out surface screeding. According to the rapid disposal technology, construction is convenient, the open traffic speed is high, time and traffic benefits are very obvious, and the generated economic benefits are also obvious.
Owner:青岛市城乡建设委员会 +3

Molten iron thermal insulating agent taking fly ash deducted from dry quenching as raw material and manufacturing and using method of molten iron thermal insulating agent

InactiveCN107557530AMeet cost reduction needsCost efficientSteelmakingEconomic benefits
The invention provides a molten iron thermal insulating agent taking fly ash deducted from dry quenching as a raw material and a manufacturing and using method of the molten iron thermal insulating agent. The molten iron thermal insulating agent comprises the following components in percentage by weight: 50%-100% of fly ash deducted from dry quenching, 0-50% of water-granulated blast furnace slag,and 0-10% of expanded perlite. Compared with the prior art, the molten iron thermal insulating agent and the manufacturing and using method have the beneficial effects that 1) 90%-100% of the raw material of the molten iron thermal insulating agent comprises metallurgical waste in a metallurgical enterprise, machining or grinding is not required, the cost is remarkably lower to that of the similar molten iron thermal insulating agent, the cost is continuously reduced according to a formula, and the cost reducing requirements of enterprises at different levels are met; 2) the molten iron thermal insulating agent can be tightly combined with high blast slag on the surface of molten iron, slagging is easy, the heat conductivity coefficient is small, the thermal insulating effect is stable and reliable, resulfurization is not needed, and the steelmaking cost is not increased; 3) the slag gathering effect is good, the crusting phenomenon of an opening of a molten iron jar is reduced, and the workload and the working difficulty of manual slag removal are reduced; and 4) the economic benefits and the environmental benefits are remarkable, and the molten iron thermal insulating agent hasremarkable economic benefits and popularization and application values within the industry.
Owner:ANGANG STEEL CO LTD

Combined exhaust passage independently installed in layered mode

The invention discloses a combined exhaust passage independently installed in a layered mode. The combined exhaust passage independently installed in the layered mode is formed by indoor vertical walls and a right-angled strip-type board in an enclosing mode, wherein the vertical walls are arranged on the two sides of a vertical wall corner. The upper end of the right-angled strip-type board is of a stepped internal insertion structure, wherein the widths of the two perpendicular side faces of the right-angled strip-type board are larger than the corresponding opening side lengths of a lower preformed mounting opening in a lower floor respectively; the stepped internal insertion structure is inserted into an upper preformed mounting opening in an upper floor; the bottom end of the right-angled strip-type board is located on the lower floor on the edges of the lower preformed mounting opening. The combined exhaust passage can be installed independently in the layered mode and supported by the floors, and as a result, the defects of inconvenient maintenance and replacement caused by a supporting system of an existing exhaust passage that the existing exhaust passage is installed from bottom to top in an overlapped mode are overcome; meanwhile, through combination of section bars and the wall, raw materials are saved, the production efficiency is improved, and the combined exhaust passage is easy and convenient to operate in the installation process; a variable pressure plate assembly is particularly suitable for being arranged on the combined exhaust passage, then the exhaust passage with a variable pressure function is manufactured, and the combined exhaust passage is convenient to maintain after being used and has obvious practical value.
Owner:张家口市宝通建筑配套制品厂
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