... pressurized, widely used Typecarbon steel pipe welded pipe seamless steel pipe spiral steel pipe alloy pipe StandardASTM A106 ... API5LGRB/ASTMA53GRB DIN ANSI GB SH HG APIMaterialGRB20#STEEL,A3,A234,ASTM,Q235,Q345,10#,45#,12CrMo ... ToleranceD<48.3mm,+-0.4mm/-0.79mm,D48.3-114.3mm,+-0.79%,D>114.3mm ... ,140mm above hot rolled,273mm above hot expandPacking6 steel strip, bundles, Caps, Plastic wrap, loading ...