Who we are Permanent Steel Manufacturing Co.,Ltd has been committed to being a major supplier of quality kinds of carbon steel pipe, 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 range 1. Carbon steel pipe Seamless Steel Pipe ERW Steel Pipe LSAW Steel Pipe SSAW Steel Pipe Casing & Tubing Galvanized Steel Pipe 2. Fittings Flange Elbow Tee Reducer 3. Hollow section Square Tube Rectangular tube Production equipment We owns 3 sets of hot -rolled seamless steel pipe production line and 2 sets of cold drawn seamless steel pipe production line with annual production capacity of 200,000 tons, the size range is from 73mm to 630mm. The continuous mandrel rolling process and the push bench process in the size range from approx. 21 to 178 mm outside diameter. The multi-stand plug mill (MPM) with controlled (constrained) floating mandrel bar and the plug mill process in the size range from approx. 140 to 406 mm outside diameter. The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter. 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 as well as BS, DIN, ASTM, JIS standards, or any other specific customer request. For more, visit: https://www.permanentsteel.com, or email: info@permanentsteel.com