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。
Drop the mesh bag into a retainer ring, place food in the bag and screw tight! It is that simple.
网格袋下降到扣环，把食物放进袋里再拧紧，操作简易。
Drop the mesh bag into a retainer ring, place food in the bag and screw tight! It is that simple.
网格袋下降到扣环，把食物放进袋里再拧紧，操作简易。
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