Wenzhou Gissun Stainless Steel Co., Ltd. Was founded in the 1990s and is located in Longwan District of Wenzhou, known as China's largest production base for stainless steel. Gissun specializes in steel pipes, pipe fittings, round steel, pipe coils, flanges, pipe valves, pipe joints, hydropneumatic pipe fittings, joints and others made from such materials as austenitic steel, super austenitic steel, duplex steel, super duplex steel, nickel-based alloys and urea-grade stainless steel.

The main materials include 304, 304L, 304H, 316, 316L, 316H, 317, 317L, 347H, 310S, 310H, 321, 321H austenitic stainless steel; UNSS31500, S31803 (2205), S32304, S32205, S32760, S32750, S31803, HDR duplex stainless steel; Nickel-based alloys Inconel 625 (UNS N06625/W. Nr. 2.4856), INCOLOY 800/800H/800HT (EN 1.4876); Hastelloy, Monel, carbon steel, alloy steel, etc. Gissun produces seamless stainless steel tubes (φ 4.8 ~ 930 * 0.5 ~ 50mm), welded stainless steel pipes (φ 6 ~ 2540 * 0.5 ~ 40mm), seamless pipe fittings (maximum diameter: Ø 630mm, maximum wall thickness: 50mm); Seamed pipe joints (maximum diameter: Ø 1, 800mm, maximum wall thickness: 50mm), and flanges (maximum size: 3, 000mm).

Gissun is introducing ISO9001: 2000 Quality Management System, and preparing for TS and certifications of classification societies, PED and API. The products meet many international standards: SAF, CNS, KS, IS, UNS, CSA, DGN, AS, BS, NF, American ASTM, ASME, ANSI, API, Japanese JIS, German DIN, Chinese GB, JB, CB, ZB, HG and SH; Sanitary class series IDF / ISO, DIN, SMS, RJT and 3A industry standards.

Gissun is equipped with advanced production lines: High precision cold drawing production lines, automatic production lines of solution heat treatment, automatic production lines of BA nonoxidation treatment, hydraulic machines, straightening machines, CNC machines, sawing machines, and production equipment for pipe fittings; Detection equipment: Direct reading spectrometers imported from Germany, PMI from the United States, automatic UT flaw detection units, automatic ET flaw detection units, hydrostatic testing machines, universal material testing machines, shock test facilities under four temperature zones (from low temperature (-196º C) to room temperature), high power microscopes, intergranular corrosion devices, ultrasonic thickness gauges, steel tube visualization machines and other advanced physical and chemical testing, nondestructive testing devices.

Our products are exported to over thirty countries and regions like Germany, Austria, Britain, France, the Netherlands, Belgium, Turkey, Russia, the United States, Mexico, South Korea, Japan, the United Arab Emirates, Iran, Brazil, Argentina, Chile, Australia and South Africa. They are widely applied to shipbuilding, offshore engineering, petrochemical, machinery manufacturing, foods and beverages, power, paper making, natural gas, pressure vessels, boiler heat exchangers, aerospace, environmental protection, high temperature resistance, low temperature refrigeration, corrosion resistance, automotives, medicines, nuclear power, water conservancy, construction, fertilizers and urea, new energy equipment, etc. Featured by reliable quality, reasonable price and good service, the products meet strict requirements on high-end pipes and are favored by users.