1.seamless carton steel pipe 2.Application: Structure Pipe 3.Standard: ASME, ANSI, ASTM 4.Section Shape: Round seamless ... ,chemical,power,gas,metallurgy,shipbuilding,constructio,etc. ISO 9001CERTIFICATE. BUTT WELDED FITTING: Production acc. to the standard of GB /ASTM / ASME ... , WP316L, A234WPB,Dimensions: Seamless: from 1/2' up to 24' Welded: From 1/2' up to 72' Packaging: Wooden Cases painted ...