Galvanized Coil, PPGI, Carbon Steel manufacturer / supplier in China, offering ASTM A36 Q235B Q345b S355jr S235jr Carbon Steel Coil Hot Rolled Carbon Steel Coils Black Steel Coils, Hot Rolled ASTM A36 SAE1006 Q235 Q345 Ss400 Hot Rolled Steel Coil 3mm 4mm 5mm 1250mm Carbon Steel Coil 1.5mm 2mm, Hot Rolled ASTM A36 Ss400 S235jr Q235B Carbon Steel Coil Smooth Surface Thickness 1.0-3.0mm for Building Welding and so on.