... 3.Standard: ASME, ANSI, ASTM 4.Section Shape: Round seamless carton steel pipespecificaton:standard:ASTM ,ASME ,DIN, USE:Petroleum, ... ,power,gas,metallurgy,shipbuilding,constructio,etc. ISO 9001CERTIFICATE. BUTT WELDED FITTING: Production acc. to the standard of GB /ASTM / ASME ... XXSMaterial Grades: A403,WP304, WP304L, Wp316, WP316L, A234WPB,Dimensions: Seamless: from 1/2' up to 24' Welded: From 1/ ...