... .Standard: ASME, ANSI, ASTM 4.Section Shape: Round seamless carton steel pipespecificaton:standard:ASTM ,ASME ,DIN, USE:Petroleum,chemical,power ... & SR ,Bend -Equal and reducing Tees,seamless and welded - Concentric and eccentric Reducers,seamless and welded -Caps, Wall thickness: From ... Grades: A403,WP304, WP304L, Wp316, WP316L, A234WPB,Dimensions: Seamless: from 1/2' up to 24' Welded: From 1/ ...