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Changzhou Oilfield Petroleum Equipment Co., Ltd.
Changzhou Oilfield Petroleum Equipment Co., Ltd.
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Tool joint for drill pipe NC50-steel pipe

Changzhou Oilfield Petroleum Equipment Co., Ltd.
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Tool joint for drill pipe NC50-steel pipe

Tool joint for drill pipe NC50-steel pipe

Petroleum drill stem joint (butt joint) is the use of oil, natural gas drilling in the tube body on the welding head with the drill pipe, including internal and external thread joint. Drill pipe ...

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