Coupling,J55,K55,L80,N80,C90 - ISO9001:2008
Coupling,J55,K55,L80,N80,C90 For Sale, Most Competitive Price, Fast Delivery, Custom Service, Wholesale Coupling,J55,K55,L80,N80,C90, Made in China, High Quality Products!, China coupling, steel pipe Supplier, Manufacturer.
Coupling is an API threaded tubular section of steel pipe used in connecting two pipe joints together. Structurally, they are short lengths of heavy wall pipe with similar type of box threads on each end.Tubing coupling is a type of drilling tool used in oil field. It is mainly used for connecting oil pipes. This pipe coupling has solved the problem that the existing couplings tend to crack due to stress concentration. The oil pipe ends and the inner wall of the steel coupling are connected through threads. The ends of the coupling and the oil pipe have the same type of threads. This type of connection is not easy to crack and the connection effect is good. The tubing coupling can effectively avoid the oil well string dropout accident.
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Tianjin Dalipu Oil Country Tubular Goods Co.,Ltd is currently an emerging production and marketing enterprise based production casing.Located in Tianjin,near the capital Beijing,and Tianjin Port the largest port in north of China,owning convenient transportation,unique geographical conditions.With API 5L oil line pipe as the main products,with prodution and sales integration,professional domestic and foreign trade operations,strengthfinancial,rich experience.
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ISO9001:2008
