Seamless Steel Pipe Standard:ASTM A53, ASTM A106, API 5L PSL1/2, EN- ... , GB 8162, GB 8163,ISO or client option Seamless Steel Pipe: Standard:ASTM A53, ASTM A106, API 5L PSL1/2, EN ... L485,A335Usage:Used for the conveyance of water, gas, or petroleum productsSizefrom 33.4mm to 810mm, thickness from 2.77mm to ...