casing pipe 1.Material:20#,35#,45#,16Mn and so on ... ASTM API JIS casing pipe spiral pipe Product Namecasing pipe spiral pipeStandardAPI5L,ASTM, ANSI, GB,DIN,JIS,BS GB8162, DIN1626MaterialAPI 5L Grade B/ASTM A106B,BS1387, ... tubes, heat exchange tubes, seamless pipe furnace tubes, heat exchange tubes, seamless pipeMOQ5 tonQualityFirst GradeDelivery Time15~30 daysYearly capacity 200000 tons casing pipe