German specifications of the system. US-made. Hexagonal nut on the system. Bolt. GB GB6170, and so on. Various screw;
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This company mainly produces various series of drilling screw with tapping screw dry wall screw fiber board screw self - tapping screw machine screw all kinds of non-standard goods.
公司主要生产各系列的自钻自攻螺钉、干壁钉、纤维板钉、自攻螺钉、机螺钉及各种非标准产品。
Nonetheless, this mechanical study provides potentially useful information regarding the performance of the various posterior rod-and-screw constructs.
尽管如此，本研究还是可以提供一些关于不同后路顶棒装置性能的有价值的信息。
"Ephraim port" brand riveting screw tubes can be widely used in various industries, has firmly, beautiful, convenient, quick characteristic.
“莲港牌”铆螺管可以广泛地使用在各个行业，具有牢固，美观，方便，快捷的特点。
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