- Steelmaking
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API: It is the abbreviation of English American Petroleum Institute, Chinese means American Petroleum Institute.
OCTG: It is the abbreviation of English Oil Country Tubular Goods. Chinese means oil special tubing, including product oil casing, drill pipe, drill collar, coupling, short circuit and so on.
Tubing: A tubing used in oil wells for oil recovery, gas production, water injection, and acid fracturing.
Casing: A pipe that has been drilled into the lining wall from the surface of the ground to prevent the wall from collapsing. Drill pipe: A pipe used for drilling a hole.
Line pipe: A pipe used to transport oil and gas.
Coupling: A cylinder used to connect two threaded tubes with internal threads. Coupling: A tube used to make a coupling.
API thread: Pipe thread specified in API 5B standard, including tubing round thread, casing short round thread, casing long round thread, sleeve tapered thread, line pipe thread, etc.
Special buckle: Non-API threaded type with special sealing performance, joint performance and other properties.
- Florence Tang
- Address:
- Room 1003, Building 22nd, Zhongcheng Lijing Xiangshan, No. 239, 2nd Part of Wanjiali Middle Road, Changsha, Hunan, China
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