Steel Coil, Steel Pipe, Steel Plate/Sheet manufacturer / supplier in China, offering (CE/ISO/SGS) Q235/S235jr/S355jr/S235/A36/Dx51d/Dx52D/Dx53D/SGCC Pre-Painted Galvanized/Galvalume/Gi/Zinc Steel Color Steel Coil for Construction, Hot Rolled for Structural Engineering Bridge Use ASTM Q235 Q355 Ss400 ASTM A36 A572 Carbon Steel H Beam I Beam, A36 ASTM HRC Q345 Q235B Hot Rolled Carbon Steel Coil and so on.