Seamless Steel Pipe, Galvanized Steel Pipe, ERW Steel Pipe manufacturer / supplier in China, offering Extra Thick 3mm Wall Galvanized Pipe ISO 65 for Structural Columns and High Pressure Gas Transmission, Hot Dipped Galvanized Round Tube JIS G3444 Stk400 for Solar Panel Mounting and Renewable Energy Projects, Precision Galvanized Round Hollow Section BS 1387 21.3mm Od for Greenhouse Structures and Agricultural Irrigation and so on.