Copper, as one of the first to be utilized metals, has been playing an important role in human life. Generally speaking, the purification of copper needs great amount of electricity and the pure copper is soft, so copper alloys are more commonly used. To adjust the strength, hardness and corrosion resistance, some other metal elements are added. For example, brass, the most-used alloy, applies to zinc as main added elements. When the main added ingredient is tin, the alloy is named bronze.

a filter made of perforated brass sheets with round holes

Perforated copper or brass sheets are capable of filtration.

We mainly supply perforated copper sheet and perforated brass sheet, which are free of rust with corrosion resistant surface of copper carbonate formed of being exposed to the weather. The warm color and noble appearance make it popular as decoration grilles whether interior design or exterior trim. Meanwhile, it can be used to secure ceiling, protect machine equipment, insulate sound, sieve grain and forage, etc.