Luggage hardware is different from other hardware. In order to be beautiful, luggage hardware needs to be electroplated and colored, they are completed at the same time. The commonly used electroplated colors are gold, silver, gun, black and copper. Silver and gun color are commonly used colors, because this color is easy to achieve, so it can be used for rolling electroplated and hang electroplated. The requirement of gold is relatively high end, which can only be achieved through hang electroplated, and the gold of roll electroplated is completely changed into a different color. Copper also has the effect of rolling electroplated. Black is a completely different electroplating method, forming a layer of color film on the surface of hardware, so the black hardware is easy to fall off after a long time using.