Who We Are Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, stainless steel tube, hollow section, numerous types of piping equipments including Bend, Cap, Coupling, Elbow, Reducer, Stub End, Tee, Olet, Joint, Gasket, etc.As a factory,which specializing in the production, processing and sales of various steel pipes and pipe fittings size enterprises, headquartered in Hunan, the production base is located in Shandong and Tianjin. Product Lists Carbon Steel Pipe/Stainless Steel Pipe/Fittings/Hollow Section Seamless Steel Pipe/ERW Steel Pipe/LSAW Steel Pipe/SSAW Steel Pipe Casing & Tubing/Galvanized Steel Pipe/Stainless Welded Pipe/Stainless Seamless Pipe Flange/Elbow/Tee/Reducer/Square Tube/Rectangular Tube Customized service The Products from Permanent Steel Manufacturing Co.,Ltd are supplied in accordance with appropriate International Standards as well as Customer Specifications in a large variety of steel grades and dimensions. Client specific requirements on execution, tolerances, lengths, mechanical and corrosion properties are offered on request. Technical support Permanent Steel Manufacturing Co.,Ltd on a 250,000 m2 area and has three production units: Foundry, Rolling and Extrusion mills. Permanent Steel Manufacturing Co.,Ltd operates under strict quality, environmental, as well as health and safety management systems, in compliance with ISO 9001, ISO 14001 and OHSAS 18001 standards. The wide product range of Permanent Steel Manufacturing Co.,Ltd meets the requirements of the Unified European standards (EN) as well as BS, DIN, ASTM, JIS standards, or any other specific customer request.