Usually there are 12 categories which are bolt , stud, screw, nut , self tapping screw, wood screw, gasket, retainer ring, pin, composite member, bolting, and soldering lamp.
它通常包括以下十二类零件：螺栓、螺柱、螺钉、螺母、自攻螺钉、木螺钉、垫圈、挡圈、销、组合件和连接副、焊钉等。
The utility model provides a simple pipe binder used for pipe bundles in various mechanical structures, comprising a buckling sheet, a stud, a cylinder conductor, a jacket, and a pipe bundle ring.
本实用新型提供一种可在各种机械结构中用于管束的简易管束器。
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