... A500,,API 5L,EN10255,BS1387 ,GB/T3091,BS1387 2)OD:12-1420mm 3)WT:2-60mm ASTM/DIN Carbon Steel PipeA ... A53, API5L,EN10255,GB/T8162,GB/T8163,BS1387 2 Size OD: 12-1420mm WT: 2-60mm Length: 2-12m 3. Surface ... 1.Standard: BS1387,ASTM A53,GB/T3091 2. Size OD: 12-1420mm WT: 0.6mm-55mm Length: 2-12mC. Square and ... Tube 1.Standard: BS1387,ASTM A53, GB/T3091 2.Size OD: 15mm*15mm-600mm*600mm WT: 0.9-12mm Length: ...