2026 Top 10 Sealing Test Manufacturers in China

Shandong Lanjing Electronic Technology Co., Ltd

Shandong Lanjing Electronic Technology Co., Ltd. is registered at Room 105, 1st Floor, Workshop 3, Oulong Technology Park, No.1 Jinma Road, Yuqing Community, Xincheng Street, Weifang High tech Zone, Shandong Province. The registration authority is the Market Supervision and Administration Bureau of Weifang High tech Industrial Development Zone, and the legal representative is Zhang Xiaotong. The business scope includes licensed projects such as construction projects. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General project: Internet of Things technology services; Manufacturing of IoT devices; Manufacturing of network equipment; Sales of network equipment; Manufacturing of intelligent unmanned aerial vehicles; Sales of intelligent unmanned aerial vehicles; Manufacturing of testing machines; Sales of testing machines; Manufacturing of specialized instruments and meters for environmental monitoring; Sales of specialized instruments and meters for environmental monitoring; Manufacturing of electronic measuring instruments; Sales of electronic measuring instruments; Manufacturing of electrical instruments and meters; Sales of electrical instruments and meters; Manufacturing of experimental analytical instruments; Sales of experimental analytical instruments; Repair of communication equipment; Electrical equipment repair; Specialized equipment repair; Instrument and meter repair; Sales of broadcasting and film equipment; Electronic product sales; Sales of specialized equipment for environmental protection; Sales of office equipment; Sales of chemical products (excluding licensed chemical products); Sales of specialized teaching instruments; Sales of mechanical equipment; Retail of hardware products; Wholesale of hardware products; Environmental consulting services; Industrial engineering design services; Enterprise management consulting; Internet data service; Software development; Sales of Class I medical devices; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Engineering management services. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Sealing Test, Hydrological And Hydraulic Instruments, Online Water Quality Monitoring Instrument

Jinan Saicheng Electronic Technology Co., Ltd

Jinan Saicheng Electronic Technology Co., Ltd., with its registered address at Building 101, 2-10, Luchun Tianhong Chuanggu Center, Tangye Street, Licheng District, Jinan City, Shandong Province, is registered with the Market Supervision Administration of Licheng District, Jinan City. The legal representative is Wei Shukun, and the business scope includes general projects such as technical services, technical development, technical consulting, technical exchanges, technology transfer, and technology promotion; Electronic product sales; Wholesale of electronic components; Retail of electronic components; Manufacturing of electronic components; Sales of mechanical equipment; Manufacturing of computer software, hardware, and peripheral devices; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Manufacturing of experimental analytical instruments; Manufacturing of instruments and meters; Sales of instruments and meters; Sales of experimental analytical instruments; Manufacturing of electronic specialized equipment; Sales of electronic specialized equipment; Sales of testing machines; Manufacturing of testing machines; Manufacturing of specialized teaching instruments; Sales of specialized teaching instruments; Sales of household appliances; Household appliance manufacturing (except for projects that require approval according to law, business activities can be carried out independently with a business license in accordance with the law) License project: import and export of goods; Technology import and export; Import and export agency (for projects that require approval by law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results). Core products: Sealing Test, Leakage And Sealing Detection, Water Vapor Permeability Tester

Jinan Mile Instrument Co., Ltd

Jinan Mile Instrument Co., Ltd., registered at Building 12-602, Phase 2, No. 1, Liandong U Valley, Jinan Zhangjin Comprehensive Bonded Zone Science and Technology Innovation Center, Suncun Street, Jinan Area, China (Shandong) Pilot Free Trade Zone, registered with the Market Supervision Bureau of Jinan High tech Industrial Development Zone Management Committee, with Li Guangying as the legal representative. Its business scope includes the manufacturing of experimental analysis instruments, testing machines, and electronic measuring instruments; Technical development, wholesale, and retail of experimental instruments and accessories, industrial control systems, mechanical equipment, electronic products, computer software and hardware; Wholesale and retail of instruments, environmental protection equipment, electronic products, hardware and electrical equipment, office supplies, metal materials, plastic products, and building materials; Construction machinery leasing (excluding financing leasing); Import and export business, as well as other projects that are not prohibited or require business licenses according to laws, regulations, and decisions of the State Council. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Sealing Test, Leakage And Sealing Tester, Residual Oxygen Meter

Shanghai Yizong Precision Instrument Co., Ltd

Shanghai Yizong Precision Instrument Co., Ltd., with its registered address at Room 1650, No. 756 Qianqiao Road, Qingcun Town, Fengxian District, Shanghai, is registered with the Market Supervision Bureau of Fengxian District. The legal representative is Sun Dan. Its business scope includes wholesale and retail of instruments and meters, mechanical equipment and accessories, automotive parts, hardware and electrical equipment, Class I medical devices, building materials, office supplies, electrical equipment, daily necessities, electronic products, electromechanical equipment, laboratory equipment, chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, civilian explosives, and precursor chemicals), computers, software, and auxiliary equipment. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Sealing Test, Shore Hardness Tester, Vickers Hardness Tester

Shanghai Xinyu Fluid Control Equipment Co., Ltd

Shanghai Xinyu Fluid Control Equipment Co., Ltd., located at Room 1637, No. 13, Lane 65, Huandong 1st Road, Fengjing Town, Jinshan District, Shanghai, was established on May 16, 2011. The registered authority is Jinshan District Market Supervision and Administration Bureau, and the legal representative is Wang Liming. Core products: Sealing Test

Yice Instrument Equipment (Hebei) Co., Ltd

Yice Instrument Equipment (Hebei) Co., Ltd., with its registered address at No. 45 Chang'an Avenue, Xian County, Cangzhou City, Hebei Province, is registered with the Xian County Market Supervision and Administration Bureau. The legal representative is Yang Jinfang, and its business scope includes wholesale of other mechanical equipment and electronic products. Research and sales of experimental instruments, testing instruments, engineering instruments, glass melting instruments, analytical instruments, highway instruments, geotechnical instruments, construction instruments, building equipment, non-destructive testing instruments, instruments and accessories, universal testing machines, pressure machines, and chassis light steel structures. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Sealing Test, Soil Tester, Curtain Wall Testing Instrument

Hebei Guanghui Experimental Instrument Co., Ltd

Hebei Guanghui Testing Instrument Co., Ltd., with its registered address at No. 392 Yintun Village, Guozhuang Town, Xian County, Cangzhou City, Hebei Province, is registered with the Xian County Market Supervision and Administration Bureau. The legal representative is Liu Jinmei, and its business scope includes wholesale of other mechanical equipment and electronic products. Sales of building materials (excluding sand and gravel), hardware and electrical equipment; Sales and leasing of experimental instruments, construction equipment, surveying instruments, fire-fighting equipment, environmental sanitation facilities, highway instruments, glassware, and mechanical equipment. **(For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Sealing Test, Aggregate Testing Equipment, Gypsum Equipment