Steel StructureChina En-10210 S235 Jrh/S355 Joh/S355 J2h/S235 Jrh/S275 J2h/S355 K2h Hot Finished Structual Hollow Sections of Non-Alloy Fine Grain Steel Pipe, Find details about China S235 Jrh Steel Pipes, S355 Joh Steel Pipe from En-10210 S235 Jrh/S355 Joh/S355 J2h/S235 Jrh/S275 J2h/S355 K2h Hot Finished Structual Hollow Sections of Non-Alloy Fine Grain Steel Pipe