... Diameter: 21 - 508 mm specifications: StandardAPI 5CT, 5L; ASTM, BS, JIS, DINSteel GradeAPI 5L-B,API 5L, X42, X52,X60,X65,X70O ... % WT: +12.5% / -10% DeliveryBy sea containerThird party inspectionSGS/BVCertificatesAPI 5CT-0865, 5L-0593, ISO9001:2000Production Capacity400,000tons per yearDelivery time20 ... .040.050.0050.02----X704825650.23-1.600.040.05------ API 5L 3pe coating steel pipe made in china