... 你猜它能做什么 » What do you think it 螺丝钻 » Screw drill 明年上海见 » Shanghai next year see ...
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left-hand screw drill pipe 左螺旋钻杆
screw drill rod 螺杆钻杆
stages of screw drill 螺杆钻具级数
bent screw drill 弯螺杆
bend screw drill 弯螺杆钻具
poured long screw drill piles 长螺旋钻孔灌注桩
by-pass valve of screw drill 螺杆钻具旁通阀
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The article introduces the construction technique of long-screw drill grouting piles, based on the engineering actuality, for the reference of similar projects.
文章结合工程实例介绍了长螺旋钻孔压灌砼桩的施工技术,以供同行参考。
The ground test replacement screw drill.
地面测试更换螺杆钻。
The air screw drill tool was power equipment which was designed for air drilling.
空气螺杆钻具是专为空气钻井而设计的动力装置。
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