How to express the alloy of zinc and copper in letters?

Cu

Zn-Cu alloy ZC

Hehe, it's a joke

Zinc alloy with copper as the main alloying element. The main brands are ZnCu1.5, ZnCu1.2, ZnCu1, ZnCu.3, etc. Adding copper can improve strength, hardness and impact toughness, but reduce plasticity and fluidity during casting, which should generally be controlled in the range of 1% ~ 7%. Prepared by melting method. It is mainly used to manufacture rolled and extruded products, and can be used as a substitute for brass such as H68 and H7, and used to manufacture zippers, multi-layer locks and other daily hardware.