Wenzhou Jiangnan Steel Pipe Manufacturing Co., Ltd. is a leading manufacturer and trading company based in Wenzhou, China, specializing in stainless steel pipe products. Established in 1989, the company operates a 38,000 square meter factory and employs between 301 and 500 people, including a dedicated R&D team and skilled workers. They offer OEM and ODM services, producing a wide range of seamless stainless steel pipes, tubes, and fittings, including pressure purposes seamless steel tubes, heat exchanger tubes, U-bent seamless stainless steel tubes, and duplex pipes. Their product portfolio encompasses various grades such as 304, 304L, 321, 316, 316L, 310S, 347H, and 2205 (S31803), complying with international standards like ASTM/ASME, DIN, and JIS. With an annual output of up to 10,000 tons of austenite stainless steel pipes and an annual output value reaching RMB 200 million, the company is equipped with advanced production and testing equipment, including electric and AOD refine stoves, perforation machines, and cold-drawn machine production lines. Wenzhou Jiangnan Steel Pipe Manufacturing Co., Ltd. holds certifications such as ISO 9001, ASME, PED, and AD, ensuring high-quality products that are acid-proof, alkali-resistant, and corrosion-resistant. Their products are widely utilized across diverse industries including petroleum, chemical, medical equipment, aerospace, and power. The company actively engages in international trade, with export sales accounting for 70-80% of its total sales volume.
Wenzhou Bestop Steel Co., Ltd. is a professional manufacturer and trading company established in 2013, specializing in high-quality steel pipes, fittings, flanges, and valves. Headquartered in Wenzhou, Zhejiang, the company operates two advanced production bases in Dafeng, Jiangsu, featuring over 15 production lines and sophisticated testing equipment for ET, UT, and HT quality inspections. With an annual production capacity of approximately 15,000 metric tons and annual exports reaching up to 8,000 tons, the company serves diverse global markets including North and South America, Europe, the Middle East, and Southeast Asia.
The company's extensive product portfolio focuses on oilfield and chemical tubular goods, including seamless and welded stainless steel pipes, nickel alloy tubes, and duplex stainless steel pipes. They also supply specialized hydraulic, boiler, heat transfer, and mechanical tubing. Their components are manufactured to rigorous international standards such as ASTM/ASME, DIN, EN, JIS, and GOST, covering materials like austenitic, ferritic, and martensitic stainless steels, as well as high-performance alloys like Monel 400, Inconel 600, and Hastelloy C-276.
In addition to piping, Wenzhou Bestop Steel provides a comprehensive range of industrial forged flanges and pipe fittings, including elbows, tees, and reducers, suitable for the petrochemical, pharmaceutical, and shipbuilding industries. The company maintains a strong commitment to quality management, holding certifications such as ISO 9001, ISO 14001, PED, and AD2000. With a dedicated R&D team and a focus on technical service, they provide reliable solutions for complex industrial fluid systems and structural applications.
TP317L Pipe Fitting, Elbow, Reducer
Butt Weld Concentric Reducer, Eccentric Reducer
Butt Weld Equal Tee, Straight Tee, Reducing Outlet Tee, Straight Cross, Reducing Outlet Cross
Butt Weld 45 Deg 90 Deg 180 Deg Elbow
KOREA KS B 2332 2333 Flange, KS D 4308 Flange
KS B 1503 PLFF/Hub/Blind 5K 10K 16K 30K 40K
JIS B2220 Flange PL/HUB/BLIND 5K 10K 16K 20K 30K
BS 10 Table E Flanges Plate Flange/Slip on /Blind Flange
BS 10 Table D Flanges Plate Flange/Slip on /Blind Flange