api 5l line pipe x42 1.Suitable for conveyance of gas, petroleum, liquid, and electricity; 2. OD: 21.3-457.2mm api 5l line pipe x421.Commodity NameERW carbon steel pipe / line pipe2.Standard,ASTMA252, ASTM A53, API 5L1,5L2, API 5CT, GBT/ 9711.1 GBT/9711.2 EN10217,EN102193.Outer Diameter21.3-457.2mm 4.Wall Thickness1.8—14.27 mm 6.PackingSmall diameter: hexagonal packing, packed by steel strip into ...