OEM Varco Forging Top Drive Spare Parts For Drilling Rig
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Factory Customize OEM Varco Top Drive Spare Parts For Drilling Rig Top drive is a key components combing the function of swivel and kellly drilling system,in contrast to kelly and rotary table drilling system, which drives the drill string from the top end......
Dongying Oilman Machinery Equipment Co.,Ltd.
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Forging Casting 6 5/8 REG Varco Parts Top Drive Saver Sub
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Black Color Varco Parts Top Drive Saver Sub 6 5/8 REG Product Introduction Saver Sub is used to extend the life of the Kelly by taking the connection wear each time it is make-up to a drill stem component. The saver sub connection is sacrificed because it ......
Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
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