flashlight

The former art for electroplating flashlight switches includes ack plating first in a Zn-Cu alloy cyanide based bath and then in chromium plating bath, resulting in low efficiency and high waste-treatment cost.

手电筒开关小零件电镀过去采用电镀氰化锌铜合金然后挂镀铬的工艺，生产效率低，三废治理费用大。

Blanking process and design of progressive die for switch base of flash light;

手电筒开关座成形工艺与级进模设计