... ·套管补心 Casing Bushings ·转盘补心 Master Bushings ·方钻杆滚子补心 Roller Kelly ...
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Do not drop or kick the master rotary bushings into position. Always use insert tools and hoist them into place.
不要投放或踢放大方瓦，应当用专用工具提着放入。
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应用推荐
模块上移
模块下移
不移动