Material:Carbon Steel A234 WPB, 20G, A105, Q235A/B Alloy steel ASTM A420 WPL6,ASTM A234 WP5, WP11, WP12 Wall thickness: SCH10 ~S160, STD, XS, XXS Size: 1/2 ~48 Standard:ASME B 16.9, GB/T12459, DIN, JIS, BS, etc Type:Seamless,Welded Type Welding:Butt welding Surface:Blasting oil, Black pain or as per customers request Packaging:Wooden cases or Wooden pallets, as per customers' requirement Application:Oil,chemical,electrical,machinery,aviation,etc. Feel free to contact us if any further questions,we will serve you as soon as possible.