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.