2026 Top 10 Variable Diameter Joint Manufacturers in China

Hebei Weiji Pipeline Manufacturing Co., Ltd

Hebei Weiji Pipeline Manufacturing Co., Ltd. is registered in Houliu Village, Yanshan Town, Yanshan County. The registration authority is the Administration for Industry and Commerce of Yanshan County, and the legal representative is Liu Shengbin. Its business scope includes manufacturing pipelines and pipeline fittings, pipe fittings, sales of spiral pipes, seamless pipes, concrete pump fittings, conveying machinery equipment and accessories, wear-resistant pipelines, hardware products, sports equipment, valves, and machine tool accessories. To engage in the import and export business of self-produced products and technologies of our enterprise, as well as the import and export of mechanical equipment, spare parts, raw materials and technologies required by our enterprise. Except for goods and technologies restricted or prohibited from import and export by the state. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Variable Diameter Joint, Taper Pipe, Socket Connection Fittings

Changzhou Gosman Pipeline Technology Co., Ltd

Changzhou Gosman Pipeline Technology Co., Ltd., with its registered address at 671 Hanjiang Road, Xinbei District, Changzhou City, Jiangsu Province, is registered with the Government Service Management Office of Changzhou High tech Industrial Development Zone (Xinbei District). The legal representative is Zou Taofeng, and its business scope includes the production, research and development, and sales of pipeline equipment and accessories, as well as plastic products; Sales of hardware products, boards, valves, molds, electronic components, and chemical raw materials (excluding hazardous materials); Import and export of goods or technology (excluding goods and technology prohibited by the state or subject to administrative approval). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) Licensed projects: 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: Variable Diameter Joint, Filter, Pvdf

Jingxian Tongmei Petroleum Machinery Co., Ltd

Jingxian Tongmei Petroleum Machinery Co., Ltd., registered in Zhongguozhuang, Jingzhou Town, Jingxian County, with the Jingxian Market Supervision and Administration Bureau as the registration authority and Meng Fanxia as the legal representative, is engaged in the production and sales of high-pressure flexible elbows, drilling hoses (water hoses), rigid straight pipe assemblies (hard pipelines), BOP control pipelines (fire-resistant pipes), high-pressure couplings, pneumatic couplings, steel couplings, flexible throttling and pressure well pipelines, plug valves, single flow valves, throttling valves, emergency relief valves (safety valves), variable diameter joints, integral joints, ring manifolds, API flanges, steel wire weaving, winding high-pressure hoses and assemblies, medium and low-pressure hoses and hose connectors, metal hoses, compensators. Sealing components * * (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Variable Diameter Joint, Flange, High Pressure Pipeline

Hebei Baote Petroleum Machinery Co., Ltd

Hebei Baote Petroleum Machinery Co., Ltd. is registered in Xiliang Village, Wangqiansi Town, Jing County, Hengshui City, Hebei Province. The registration authority is Jing County Market Supervision Administration, and the legal representative is Wu Limin. Its business scope includes the production and sales of high-strength drilling hoses (water hoses), throttling and well killing pipelines, flame-retardant and fire-resistant hose assemblies, large-diameter hoses, high, medium and low pressure couplings, pneumatic couplings, telescopic steel couplings, high-pressure straight pipes, quick couplings, flexible couplings, high-pressure movable elbows, mud gate valves, one-way valves, plug valves, safety valves, fracturing tees, four-way valves, metal hoses, fiberglass pipes, composite manifolds, petroleum drilling and exploitation accessories, and special rubber nylon products; Import and export of goods or technology * * (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Variable Diameter Joint, Protective Cap, Circular Manifold

Shanghai Haifei Control Equipment Co., Ltd

Shanghai Haifei Control Equipment Co., Ltd., located at Room 127, Building 1, No. 943 Lingzhi Village, Fengpu Development Zone, Fengxian District, Shanghai, was established on November 2, 2011. The registration authority is the Fengxian District Market Supervision Administration, and the legal representative is Ding Bangfu. Core products: Variable Diameter Joint, Parker Instrument Pipe Valve Components, Swagelok Valve

Shanghai Jiaguan Industrial Co., Ltd

Shanghai Jiaguan Industrial Co., Ltd. is registered at No. 198, Lane 200, Fangde Road, Anting Town, Jiading District, Shanghai. The registered authority is the Jiading District Market Supervision Bureau, and the legal representative is Yu Zengxia. Its business scope includes the sales of metal materials, rubber products, labor protection supplies, electrical equipment, wires and cables, lubricants, mechanical and electrical equipment, water and electricity installation, pipeline engineering (excluding special equipment), property management, motor vehicle driving services, office equipment maintenance, and business consulting. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Variable Diameter Joint, Carbon Steel Pipe Fittings, Ma Steel Pipe Accessories

Hebei Xinsui Environmental Protection Equipment Co., Ltd

Hebei Xinsui Environmental Protection Equipment Co., Ltd. is located in Wangwozhuang Village, Jiaohe Town, Botou City, Cangzhou City, Hebei Province. It was established on June 28, 2018 and registered with the Botou Market Supervision Administration. The legal representative is Wang Jinzhi. Core products: Variable Diameter Joint, Special Spiral Air Duct For Air Ducts, Pipe Fitting