The raw material is brass. The "rust" of copper is different from the rust of iron. The "rust" of copper is green, which is what people often call "copper green". "Copper green" is copper oxide formed by the chemical reaction between copper and oxygen. In order to prevent copper and oxygen from coming into contact, the surface is coated with a layer of metal chrome. The stability of chrome is very good, and it is wear-resistant. It also has a bright color and is very beautiful. Usually, the door handle of the car is bright. chromium. The plated copper towel rail can not be in contact with the air and will not grow "copper". So why do customers sometimes reflect the rust in their homes? There are several situations:
1, the towel rack coating is not protected, resulting in coating damage, brass and air contact, may grow "copper" in a humid environment.
2, did not wipe frequently, over time, some leeches on the surface to form dirt, and finally spotted black spots.
3, poor water quality, containing metal ions, plus no regular wiping, or some sanitary dead zone, these metal ion-rich water droplets and air, for a long time may produce rust spots.
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