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In the future, Dongfanglong will closely focus on national policy orientation and innovation driven development strategy, formulate sustainable development transformation strategy, keep forging ahead, take creating world famous brand and winning honor for the nation as the goal, work together with people of insight from all walks of life for win-win cooperation, and build up the dream of oil equipment manufacturing.
The coupling produced by our company is divided into tubing coupling, casing coupling and reducing coupling (also known as reducing coupling), which is produced and processed in accordance with API SPEC 5CT and 5B specifications. The materials include J55, K55, N80, N80-1, N80-Q, L80 and P110 steel grades. Tubing connections are available from 1.9 inches to 4-1/2 inches flat (NUE,TBG) and thick (EUE,UPTBG). Casing connections are divided into 4-1/2-inch to 20-inch round thread connections and side-stepped casing connections (BTC), and round threads are divided into long round connections (LTC) and short round connections (STC). Its thread processing using CNC lathe and imported forming tool processing is completed, the company has a complete testing equipment, products through the American Petroleum Association and China Petroleum Natural Gas Corporation oil pipe quality supervision and inspection test center identification.
Oil, casing sub and reducer joints are manufactured in accordance with API SPEC 5CT and 5B Specifications. Materials include J55, K55, N80, N80-1, N80-Q, L80, P110 and other steel grades. The tubing sub consists of two kinds: flat type and external thickening; The short section of the casing has partial ladder, long round and short round buckle. Its thread processing using CNC lathe and imported forming tool processing is completed, the company has a complete testing equipment, products through the American Petroleum Association and China Natural Gas Corporation oil pipe quality supervision and testing center identification. All sizes, steel grades, lengths, etc. can be produced according to customer requirements.
ormal; The font - size: 13.5000 pt; The oledata.mso - the font - kerning: 1.0000 pt; Background: RGB (255255255); The oledata.mso - shading: RGB (255255255);" >) And thickened coupling (EUE,UPTBG); Casing connections are divided into 4-1/2-inch to 20-inch round thread connections and side-stepped casing connections (BTC), and round threads are divided into long round connections (LTC) and short round connections (STC). Its thread processing using CNC lathe and imported forming tool processing is completed, the company has a complete testing equipment, products through the American Petroleum Association and China Petroleum Natural Gas Corporation oil pipe quality supervision and inspection test center identification.
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Con tact: chen dongfanglong@ 163.com
Wha tsApp: +86 183 393 33686
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Main Product:
Tubing&Casing Coupling,
API 5CT PUP Joint,
X-over Crossover,
Down Hole Tools ,
Cementing Tools,
Sucker Rod Couplings
