What should be noticed when the clothes rack is electroplated?

A lot of people are very fond of using an electric coat hanger, and then we will introduce the notice of the hanger plating:

First of all, in the process of electroplating, water quality is very important, it is best to make pure water hangers, the quality is the best. Secondly, before the hanger plating, be sure to remove the clothes rack, if not handled properly, the coat hanger after plating, the surface is not smooth, there will be small particles, thereby affecting the appearance. Again, the hanger and electroplating concentrated nitric acid using generally not light in the process, will affect the coating grade, but also to minimize the residence time in the air, so as to avoid the hanger surface and air long time contact, so prone to oxidation.