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1·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。

2·SMD lamp beads, manufactured through full automatic reflow soldering line.

贴片灯珠，全自动化回流焊生产；

3·After soldering is completed, the lamp is cleaned, giving it the final beauty and luminescent qualities intended in the design.

焊接完成后，灯被清除，给它最后的美丽和发光特性的设计意图。