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Tubing collar is a kind of drilling tool for oil field. It is mainly used for connecting tubing and mainly solves the problem of fatigue fracture caused by stress concentration of existing tubing collar.
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Tianjin Jinggong Petroleum Special Pipe Fittings Co., Ltd.

The company advocates: health, safety, environmental protection of the business philosophy, wholeheartedly with the vast number of domestic and foreign users, common development...

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