left-hand two-flute drill的意思|示意
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英 / /
左旋双槽钻头
left-hand two-flute drill的网络常见释义
左旋双槽钻头 ... left-hand tool joint thread 左旋钻杆评论申辩螺纹 left-hand two-flute drill 左旋双槽钻头 leg guard 护腿 ...