Standard GB6728-2017, ASTM A500 GRADE A, B,C, EN10219 Grade Q235B,Q355B,SS400, S235JR,S275JR, S275J0R, S275J2R, S355JR,S355J0R, S355J2R Thickness 1.2mm-18mm Section Shape Square and Rectangle Place of Origin Handan Hebei , China Outer Diameter 20X20-300X300 & 20X40-400X200 Technique ERW Certification ï¼?CE, SIREM ,ISO Application: Structure pipe Surface Treatment: � Hot dipped galvanized or Oil or Black painting/Lacquer Packaging&Deliver Packaging Details : Bundle Delivery Detail : bulk or container
