Rotary bit


  • 翻译:旋转钻头

同义词

1)Rotary bit,旋转钻头2)rotary bit,旋转式钻头3)rotary bit,旋转钻井用钻头4)rotary drill,旋转式钻头<能>5)rotary drilling swivel,旋转钻井水龙头6)rotary core bit,旋转式取心钻头

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