... security, highly pressurized, widely used Typeseamless steel pipe spiral steel pipe alloy pipe welded pipe stainless steel pipeStandardASTM A106 GRB/API5LGRB/ASTMA53GRB ... DIN ANSI GB SH HGMaterialGRB20#STEEL,A3,A234,ASTM,Q235,Q345,10#,45#,12CrMo, ... cold drawn,140mm above hot rolled,273mm above hot expandPacking6 steel strip, bundles, Caps, Plastic wrap, loading belt, or ...