1.API Steel casing pipe 2.Good quality,competetive price 3.Have API 5CT,ISO certificate 4.OD:89-273mm 5.WT:4-20mm 1.API Steel casing pipe 2.Good quality,competetive price 3.Have API 5CT,ISO certificate 4.OD:89-273mm 5.WT:4-20mm API 5CT Carbon Steel casing pipe Specification: Out Diameter: 3"- 10"(89mm-273mm) Wall Thickness:4mm-20mm Length: 6m, 9m, 12m, special lengthSteel Grade: H40, J55, ...