Petroleum pipe We a leading petroleum pipe supplier with api certificates. Our products include: casing, tubing, drill pipe, drill collar, in various specifications. Steel grade: j55, k55, n80, p110, e75, x95, g105, s135. Outside diameter: 2-3/8"-13-3/8" Api certificate: api spec 5ct, api std 5b, api 5d Packing: packed in bundles, suitable for long distance shipment Delivery time: with many years' of experience in this field, our delivery time is usually shorter by one month. Packed in bundles, suitable for long term shipment
