... cost and easy operate. cyanide type Alkaline Cyanide Copper Plating Chemicals for button, zipper, buckle1. Features1.Bright and smooth coating, the ... density, excellent coverage;3. Impurities in high-tolerance, easy to control;4.Selected to use in basic parts of different material ... , with good quality and easy operation. Alkaline Copper Cyanide Plating Chemicals for Button, Zipper, Lighting