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Hejian Deris Petroleum Drilling Equipment Co.,Ltd.

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Home > Video > manufacturer & supplier replacement tricone bit cutters / single roller cones / tricone bit palm for make hole opener core barrel

manufacturer & supplier replacement tricone bit cutters / single roller cones / tricone bit palm for make hole opener core barrel

https://www.youtube.com/watch?v=DPmIuY9G9W8

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