Hot steel pipe fittings: Size: 1/2"~72" Thickness:SCH20,SGP,STD,SCH40,SCH80,SCH160 Standard:ANSI B16.9/16.28. Product Name: Hot steel pipe fitting1. Type; elbow , Tee , reducer , cap 2, Size: 1/2"~72"3,Standard: ANSI B16.9/B16.28, ASTM, API5L,DIN2605/2605/2606,JIS P2311/2312, ASME B36.10M--19964, Meterial:ASTM , A234,WPB,Carbon steel5.Thick ness:SCH20, SGP,STD,SCH40,SCH80,SCH1606.Surface ...