... ,STD,SGP,SCHXS,SCHXXS Size:from 1/2" to 24" seamless pipe fittings;from 1/2" to 48"welded pipe fittings.Wall thickness ... ,SCH60,SCH80,STD,SGP,DIN,XSStandard:ASTM,DIN,JIS,BSType:seamless and weldMaterial:carbon steel ASTM A234WPBSurface treatment:transparent oil,rust ...