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gas absorption3,000+ factories verified

Shenyang Xingzhenghe Chemical Co., Ltd.

17 yrs·5.0
·Trading Company
Main Products:
Polycarboxylate Superplasticizer, Sodium Gluconate
Country/Region:
Liaoning, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xingzhenghe Chemical is a specialized factory of concrete admixture, which is set up in 2001 and located in Shenyang city, Liaoning province. We are strong at researching and production of Lignosulfonate, polycarboxylate superplasticizer, naphthalene superplasticizer, alkali free quick setting agent, redispersible latex powder, hydroxypropyl methyl cellulose, 3-mercaptopropionic acid, acrylic acid. 30 years of deep cultivation in concrete additives and agricultural additives in the construction industryOur Annual output is over 150, 000 Mts. Xingzhenghe Chemical has exported to around 60 countries and regions, such as Japan, South Korea, India, Vietnam, Indonesia, Russia, Ukraine, South Africa, Chile and Australia etc. With good reputation and service, Xingzhenghe Chemical. Has built long-term stable co-operation with many clients since foundation. Sale-service net system of our company has formed in the whole country. We also have opened branch companies (or offices) and transfer warehouses for foreign trade in Tianjin, Qingdao, Shanghai, Guangzhou etc. Good resources and advanced manufacturing technology are in close integration, which makes our products more perfect. At present, our company's "XZH" brand products has sold to every province in domestic market, and entered the international market, such as southeast Asia, America, Africa and Europe. And has get worldwide reputation depending on our high quality products, professional specialist and best service. Thus, our company has become a well-known professional operator in the field of concrete admixture products.

Zhengzhou Laboao Instrument Equipment Co., Ltd.

Main Products:
Reactor, Rotary Evaporator, Bioreactor Fermenter, Freeze Dryer, Spray Dryer, Lab Drying Oven, Laboratory Equipment, Drug Testing Instrument, Chemical Analysis Instrument, Agriculture Testing Instrument
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhengzhou Laboao Instrument Equipment Co., Ltd (LABOAO) is a high-tech enterprise integrating R&D, production, sales, import and export, and is a leading laboratory equipment solution provider in China. LABOAO is headquartered in Zhengzhou, China. It has a group of excellent management and technical personnel who strive for excellence and constantly pursue progress and innovation. After fifteen years of hard work, it has achieved sustained and steady development, and its products are exported to Europe, America, Southeast Asia, the Middle East, South Africa, etc. 150 countries, we are working hard to establish a global regional service agency to provide better services and products for global customers.

Hangzhou Wellcare Technology Co., Ltd.

5.0
Main Products:
Psa Gas Plant, Gas Cylinders, EPC Project of Alcohol Plant, Gas Generators, Cryogenic Air Separation Unit, Gas Regulators, Medical Gas Installation Projects, Hydrogen Generator, EPC Project of Hydrogen Peroxide, Furfural Manufacturing Equipment
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Hangzhou Wellcare Technology Co., Ltd. is a gas & liquid equipment manufacturer integrating R&D and production of large-scale EPC engineering of complete sets of alcohol equipment, furfural and hydrogen peroxide, cryogenic air separation unit, gas generators, PSA gas generators, gas pressure vessels ( steel gas cylinders, aluminum gas cylinders, cryogenic liquid tank ), and gas pressure regulators. We are located in the beautiful Hangzhou, surrounded by a complete industrial supply chain system. The supply of production materials is stable, the product production cycle is short, and the production cost is relatively low. Based on our sincere, professional and thoughtful service attitude and the production philosophy of always making first-class products, we hope to become a partner that our customers will always trust and rely on.

Anhui January Technology Co., Ltd.

12 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Gas Cabinet, Scrubber, Liquid Delivery System, Valve Manifold Box, Bulk Chemical Distribution, Gas Box, Valve Manifold Panel, Gas Mixing Equipment
Country/Region:
Anhui, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Anhui January Technology Co., Ltd. Was established in 2014 and has been deeply involved in the field of process media equipment for many years. It mainly provides comprehensive solutions for high-purity media (gases and chemicals) transportation equipment, exhaust gas treatment (scrubber), gas recovery and purification (hydrogen, ammonia, helium, argon gas, etc. ) for semiconductor enterprises. It is one of the few domestic enterprises that has both gas safety supply and efficient purification and recovery technology. The company is headquartered in Hefei, Anhui Province, and has built its own R&D and production base, which includes four digital workshops with a total construction area of over 20, 000 square meters, including approximately 4, 000 square meters of clean rooms at Class 100, Class 1, 000, and Class 10, 000 levels. The annual delivery capacity of the equipment exceeds 5, 000 units/set. The company currently employs over 200 people, with about 30% being R&D personnel.

Qingdao Rely Environmental Technology Co., Ltd

12 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Biogas Plant, Biogas Project, Biogas Digester & Biodigester, Biogas Tank, Biogas Purification Devices, Anaerobic Fermentation Tank, Biogas Generation CNG Plant, Sewage Treatment Plant, Mbr Domestic Sewasge Treatment Plant, Landfill Leachate Sewage Treatment Plant
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
We, Qingdao Rely Environmental Technology Co., Ltd., established in 2015, is a comprehensive environmental enterprise, included product research, process design, system integration, equipment manufacturing, project construction and technical services. We committed to become a professional and reliable supplier of water treatment and organic waste solutions.

Chongqing Acore Filtration Co., Ltd.

Main Products:
Oil Purifier, Vacuum Pump Machine, Oil Tester, Dry Air Generator, Oil Filtration Machine, Oil Purification Machine, Bdv Tester, Transformer Oil Purifier, Portable Oil Filter, Vacuum Oil Purifier
Country/Region:
Chongqing, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Acore Filtration Co., Ltd is one of leading engineering and manufacturer of oil purifier machine in Chongqing, China, we take responsibility from studying the client requirement, recommendation of solutions, design, implementing the solution and train personnel to maintain the systems. With special emphasis on providing oil purification systems for a wide variety of oils and applications, our products includes transformer oil purifier, lube oil purifier, turbine oil purifier, hydraulic liquids filtration machine, vacuum dehydration oil purification systems, vacuum pump set, dry air generator, diesel fuel purifier and other industrial oil filtration systems. Meanwhile, combining measurement, diagnostic and analysis technology, we also supply oil testers.

Qingdao Xiqiao Environmental Protection Technology Co., Ltd.

Main Products:
Wastewater Treatment Equipment, Sludge Treatment Equipment, Exhaust Gas Treatment Equipment, Wastewater Treatment Plant, Waste Gas Treatment Plant, Waste Gas Treatment Equipment, Sludge Treatment Plant Equipment
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Our company is a high-tech enterprise specializing in the R&D, design, production, and sales of environmental protection equipment. We are committed to providing efficient, energy-saving, and intelligent pollution control solutions for industrial, municipal, and various environmental projects. Our business spans environmental sectors including wastewater treatment equipment, sludge treatment equipment, and exhaust gas treatment equipment. Leveraging advanced technical capabilities, extensive project experience, and a comprehensive after-sales service system, we have become a leading supplier of environmental protection equipment, empowering clients to achieve green and sustainable development. Our company boasts a professional team comprising environmental experts, engineers, and technical personnel. We adhere to innovation-driven development, collaborating with multiple research institutions and universities to continuously optimize product performance and enhance treatment efficiency. Our equipment is widely applied across industries such as chemical, pharmaceutical, food processing, electroplating, textile dyeing, and municipal wastewater treatment, earning extensive customer trust through its stable and reliable quality.  

Zhejiang Tengyun Refrigerating S&T Co., Ltd.

30 yrs
·Manufacturer/Factory
Main Products:
Refrigerator, Cooler, Minibar
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Founded in 1997, Zhejiang Tengyun Refrigerating S& T Co. Ltd. Is a high-tech, modernized enterprise mainly operating the production of absorption refrigerator and producing mechanical parts. It is the largest base in Changjiang Delta for the production of absorption refrigerator series. In 2000 Tengyun entered the hotel industry, providing quality absorption refrigerator to star-level hotels. The absorption refrigerator by its super-quiet working state is the first choice for guestrooms for starlevel hotels. We have developed the absorption refrigerator from a single model of 2000 to the present twenty models or so. The company's design and development of new products for agents of Europe and America relies on its complete set of digital control systems and the increasingly reinforced research and development ability. Currently, the company owns independent intellectural property rights, has created and obtained more than 40 patents for inventions, and is continuously reinforcing the product quality by 2-4 new patents annually, ensuring further the perfection and stability of products. The company has obtained the titles as " National Important New Products", "National High-tech Enterprise", "Zhejiang Top-100 Middle and Small Enterprises with Hugest Potential", etc. The Company studies and operates in ISO system, with its products passing ISO9000, CCC, CE, RoHS, GS, and ETL.

Mingshuo Environment Technology Group Co., Ltd.

22 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Iron Oxide Desulfurizer, Iron Oxyhydroxide Desulfurizer, Biogas & Desulfurization Equipment
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Mingshuo Environment Technology Group Co., Ltd. Was founded in 2004 and we are a high-tech enterprise focused on development of desulfurization career.

Xiamen Shuangyuan Springs Co., Ltd

Main Products:
Gas Spring, Locking Gas Spring, Gas Strut for Car Hood and Tailgate, Gas Spring for Medical and Rehab Industry, Linea Damper, Oil Cylinder for Fitness Equipment and Medical, Gas Spring for Furniture, Damper, Various Springs, Stamping Parts
Country/Region:
Fujian, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Xiamen Shuangyuan Springs Co., Ltd. And it's subcompany specialize in the production and sale of various gas springs and spring in China.

Jiangsu Kaimei Electronic Materials Co., Ltd.

10 yrs
·Trading Company
Main Products:
Electronic Gas Disinfectant
Country/Region:
Jiangsu, China
R&D Capacity:
ODM Service
Company Profile:
Jiangsu Kaimei Electronic Materials Co., Ltd. Belongs to Jiangxi Hechun Electronic Materials Technology Co., Ltd., the production base is located in Jiujiang City, Jiangxi Province, Hukou high-tech Development Zone, and in Henan Luoyang, Shaanxi Xi 'an, Guangdong Guangzhou, Jiangsu Wuxi and other places with branch storage.

Henan L.T Trade Co., Ltd.

5.0
Main Products:
Carbon Graphite Blocks, Graphite Crucibles, Graphite Mold, Graphite Electrode, Graphite Rotor and Vanes, Carburizer/Recarburizer, High Purity Graphite Materials, Customized Graphite Parts/Components, Sic Graphite Crucibles, Terrazzo Tiles
Country/Region:
Henan, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
L. T GROUP is formally authorized by Industrial and Commercial Bureau of China. We have two main product lines: Construction materials (mainly concrete and terrazzo); Another is Carbon and Graphite industry.

Top New Energy Technology(Dongguan) Co.,Ltd

9 yrs
·Trading Company
Main Products:
Golf Cart, Lights Of Golf Cart, Seat Kit Of Golf Cart, Windshield Of Golf Cart.
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Zibo Dijia Special Gas Co.,Ltd.

12 yrs
·Trading Company
Main Products:
Hydrogen Chloride; Sulfur Dioxide
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Founded in 2015, Zibo Dijia Special Gas Co., Ltd, based on more than thirty years of research and production of hydrogen chloride gas, Dijia as the window to actively explore new markets and integration of special gas resources for domestic and foreign customers. Zibo Dijia has full range of gases, including Industrial gases, specialty gases, electronic gases, high purity gases, mixed gases, electric lighting gases, ultra-pure gases, laser gases, medical gases, calibration gases, a total of ten series of more than 100 varieties, with strong market competitiveness. In addition, the company has a strong R&D and design team, which can provide technical output services for environmental protection, gas recovery and resource utilization projects. To provide research and development, production plants, sales, transportation one-stop gas procurement needs, to provide customers with a perfect service system. >>Industrial Gases: Hydrogen H2, Oxygen O2, Nitrogen N2, Propane C3H4, Ammonia NH3, Carbon Dioxide CO2, Sulfur Dioxide SO2, Carbon Monoxide CO, Chloromethane CH3Cl >>Medical Gases: Nitrous Oxide N2O, Carbon Dioxide CO2, Oxygen O2 and Air >>Specialty Gases: Sulfur hexafluoride SF6, Ethylene C2H4, Hydrogen Sulfide H2S, Methane CH4, Hydrogen Chloride HCl, Nitrous Oxide N2O, Nitric oxide NO, Nitrogen Trifluoride NF3, Boron Trifluoride BF3, Tungsten Hexafluoride WF6, Hydrogen Bromide HBr, Boron Trichloride BCL3, Carbon Tetrafluoride CF4 >>Rare Gases: Argon, Helium, Neon, Xenon, Krypton >>Refrigerant Gases: Ammonia R717, Difluoromethane R32, CH2F2, Trifluoromethane R23, CHF3, Hexafluoropropylene R1216, C3F6, Butane R600, C4H10 >>Mixture Gases/ Calibration Gases: NO/N2, He/N2, CH4/Ar, F2/He/Ne, B2H6/He, pH3/He >>Equipment &Engineer: 1-900LTR Steel Cylinders, Aluminum Cylinders, Gas Tanks, GB/ISO/DOT Approved. Hydrogen Chloride HCl Gas; Hydrogen Sulfide H2S Gas; Sulfur Dioxide SO2; NH3 Ammonia, SF6, we have competitive price.

Langfang Yolo Technology Co., Ltd.

5.0
Main Products:
Nitrous Oxide, Cream Charger, Gas Cylinder, Pressure Reducing Valve, Cream Dispenser, N2o, 0.95L 640g Cream Chargers, 2.2L 1364G Cream Chargers, 3.3L 2000g Cream Chargers, Gas Tank
Country/Region:
Hebei, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Welcome to CreamJet's state-of-the-art factory, where innovation meets excellence in the production of nitrous oxide. Our facility is dedicated to crafting high-quality nitrous oxide cartridges, essential for creating delightful whipped cream and other culinary delights.

Nanjing Deshilan Technology Co., Ltd

Main Products:
Ethane, Propane, Methane, Helium (He), Propylene, Ethylene, Isobutane, Isopentane, Liquid Nitrogen, Liquid Ammonia
Country/Region:
Jiangsu, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Nanjing Deshilan Technology Co., Ltd. Was established in April 2005 and is located in the Yangtze River Industrial Development Zone of Nanjing, a national level petrochemical industry base in China. Leveraging the industrial cluster advantages of Yangzi Petrochemical and Yangzi BASF, the company integrates strong technological strength and high-tech to provide high-quality chemical products and technical services for domestic and foreign users. It has also participated in the research and development of small and medium-sized organic intermediate synthesis, natural gas liquefaction refrigeration process, civilian refrigerant technology, fruit and vegetable ripening technology, and rubber gas micro cutting technology.

Shandong Shaohua Gas Co., Ltd.

Main Products:
Hydrogen Production Equipment, Oxygen Generator, Nitrogen Generator, Air Temperature Vaporizer, Cryogenic Liquid Pump, Liquid Nitrogen Biological Container, Liquid Nitrogen Vacuum Pipe, Bulk Liquid, Bottled Gas, Storage Tank
Country/Region:
Shandong, China
Company Profile:
Shandong Shaohua Gas Co., Ltd. is a diversified and innovative enterprise specializing in industrial gases and gas equipment, with its headquarters located in Yantai and a branch in Qingdao. Since its establishment, Shaohua has continuously strengthened the collaborative innovation between universities and enterprises, promoted the in-depth integration of industry, education and research, and actively introduced high-level talents with professional knowledge. The company has obtained ISO9000 certification, 3A Credit Evaluation System Certification, Excellent Supplier System Certification, Technology-based Small and Medium-sized Enterprise Certification, etc. It has provided various industrial gas application solutions for more than 1, 000 customers, covering industries such as aerospace, rail transit, military manufacturing, petrochemicals, metal smelting, high-end electronics, lithium battery materials, medical and health care, food processing, sewage treatment, and aquaculture.

Qingdao Guida Special Gas Co., Ltd.

10 yrs
Main Products:
Nitrous Oxide, Helium Gas, Ne, Oxygen Gas, Argon Gas, CH4, CO2, Gas Cylinder, Tank, So2
Country/Region:
Shandong, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Qingdao Guida Special Gas Co., Ltd. is specializing in special gas, industrial gases, medical gases and calibration gases for more than seven years. The main gases we are dealing with are Oxygen(O2), Carbon Monoxide(CO), Ethylene(C2H4), Sulfur Hexafluoride(SF6), Carbon Tetrafluoride(CF4), Nitrous Oxide(N2O), Sulfur dioxide(SO2), CO2/ETO, Helium, Liquid Ammonia(NH3), Butane, Propane, Liquid Cl2 and etc. As for the grade of different gases, it includs industrial grade, food grade, medical grade, electronic grade.

Maotoogas Equipments (Shanghai) Co., Ltd.

13 yrs
·Trading Company
Main Products:
Mixed Gas, High Purity Gas, Electronic Gas, Gas Cylinder
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
MAOTOOGAS EQUIPMENTS (Shanghai) Co., Ltd. Was founded in 2008, a wholly-owned subsidiary of Hong Kong Maotoogas, specializing in the production and sales of mixed gas, high-purity gas, electronic gas, isotope gas and other gas products, as well as gas pipeline supporting engineering services!

Qingdao Forterra Gas Co., Ltd

5.0
Main Products:
Gas Cylinder, Argon Gas, Argon Mix Gas, Helium Gas, Cryogenic Pump, Liquid Argon, Cylinder Cap, Carbon Monoxide Gas, Cylinder Pallet, ISO Tank T75
Country/Region:
Shandong, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Forterra Gas is a leading and professional gas company located in QINGDAO, China. We supply gas equipmentsm, such as gas cylinders ( steel cylinders, aluminum cylinders), cylinder valves, Cryogenic gas equipments, such as cryogenic storage tank, cryogenic pump, cryogenic dewars, liquid nitrogen container. Also we supply all kinds of industrial gases, such as Nitrogen, Oxygen, Carbon Dioxide, Argon, Hydrogen, Helium gas, Acetylene gas, Nitrous oxide gas, Carbon monoxide gas, CH4 gas and also Mix gases...etc. We can supply refilling service, and we also have gas plant design ability can offer clients the one-stop gas plant design service. Products customize service...And so on.

JINHUA SLIHE CHEMICAL CO., LIMITED

5.0
Main Products:
Refrigerant, Brake Fluid, Refrigerant Gas, Freon Gas, Air Duster, R134A/R404A/R410A/407c/R507c/R22, Freeze Spray, Car Care Products, Antifreeze Coolant, Air Conditioner Parts
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
JinHua Slihe Chemical Co. Limited is located in Zhejiang province, which is main production base of refrigerant gas since 2011. We are close to Shanghai and Yiwu, it is very convenient for transportation, main seaport is Ningbo and Shanghai.

Dalian Binhang Ecological Environmental Protection Engineering Co., Ltd.

5 yrs
·Trading Company
Main Products:
Waste Gas Treatment Equipment, Dust Collector, Spray Tower, Washing Tower, Rto Thermal Energy Storage Catalytic Combustion, Activated Carbon Adsorption Tower, Industrial Dust Collector, Mobile Intelli
Country/Region:
Liaoning, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Company Profile

Qingdao Shingchem New Material Co., Ltd.

5.0
Main Products:
Refrigerant Gas R134A, Refrigerant Gas R410A, Refrigerant Gas R507, Refrigerantgas R404A, Refrigerant R22, R1234yf, Mapp Gas, PVC, PTFE Sheet, Refrigerant Oil
Country/Region:
Shandong, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
QINGDAO SHINGCHEM NEW MATERIAL Co., Ltd., established in 2012, is a professional company engaged in refrigerant gas and many chemical products.

Qingdao Ruiming Blue Sky Energy Co., Ltd.

Main Products:
Nitrous Oxide, Helium Gas, Ethylene Gas, Argon Gas, Carbon Monoxide, ISO Tank Container, N2o Cream Charger, CO2 Tank, Oxygen Cylinders, Helium Gas Cylinder
Country/Region:
Shandong, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
Ruiming Gas is a large-scale professional gas company dedicated to China's industrial development. Our office is located in Qingdao, Shandong. After more than 15 years of development, our business has now spread all over the country and overseas.

Wuxi Huaruide Automation & Machinery Co., LTD.

22 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Dry Ice Machine Dry Ice Making Machine, Dry Ice Machine, Ccus, CO2 Capture, Carbon Capture, Block Dry Ice Machine, Granular Dry Ice Machine, Small Hydraulic Station, Dry Ice Insulated Box, Dry Ice Cleaning Machine
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Founded in 2005, Wuxi Huaruide Automation Machinery Co., Ltd. is a pioneering enterprise specializing in the R&D and production of dry ice-related equipment, located by the scenic Taihu Lake in Wuxi, Jiangsu Province. With a 8, 000-square-meter production base and a professional team of 21 technical personnel (including 2 engineers, 3 sales engineers and 4 technicians), we have solid strength in hydraulic systems and dry ice equipment manufacturing.

Huayi Century (Shandong) Supply Chain Development Co., Ltd.

2 yrs
·Trading Company
Main Products:
Bus, Used Bus, Tire, Used Tire, Construction Machinery, Waterproof Materials, Auto Parts, Kitchenware, Used Shoes, Used Bed Sheet
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
General projects: Supply chain management services; Sales of daily necessities; Sales of textile products and raw materials; Sales of household appliances; Retail of stationery; Sales of daily sundries; Retail of shoes and hats; Retail of clothing and accessories; Sales of textile products; Retail of cosmetics; Sales of personal hygiene products; Wholesale of kitchenware, sanitary ware and daily sundries; Sales of gifts and flowers; Sales of mother and baby products; Sales of watches; Sales of bags; Sales of eyewear (excluding contact lenses); Retail of bicycles and parts; Retail of sports goods and equipment; Sales of outdoor products; Retail of computer software, hardware and auxiliary equipment; Retail of hardware products; Sales of communication equipment; Internet sales (excluding sales of goods requiring licenses); Sales of petroleum products (excluding dangerous chemicals); Sales of rubber products; Sales of tires; Sales of daily glass products; Sales of technical glass products; Retail of arts and crafts and collectibles (excluding ivory and its products); Sales of arts and crafts and gifts (excluding ivory and its products); Sales of architectural ceramic products; Import and export of goods; Import and export of technology; Operation of second-hand car trading markets; Second-hand car brokerage; Sales of automobiles. (Except for projects that must be approved by law, business activities can be carried out independently based on the business license. )