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Oil drill pipe joints, and can be required to provide a variety of drill pipe according to the user connector rough, light billet and finished products. Joint selection of quality alloy steel, special heat treatment, high strength, toughness, and long life characteristics. Thread surface by copper or phosphate treatment, and excellent anti-sticking
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- Address: N0.10 Chengjiang Street Industrial Zone (South) Xiejing Road,Jiangyin City,Jiangsu Province,China.
- Tel：0510-80629386 Fax：0510-80629390 P.C：214432 Technical Support：Qianfan Technology