Commonly used in zinc alloy handles. Alloy handles are materials with metallic properties synthesized by two or more metals and non-metals by certain methods. Generally obtained by melting a homogeneous liquid and solidifying. According to the number of constituent elements, it can be divided into binary alloys, ternary alloys and multicomponent alloys. China is one of the first countries in the world to research and produce alloys. In the Shang Dynasty (more than 3,000 years ago), the bronze (copper-tin alloy) process was very developed; it was forged in the 6th century BC (late spring and autumn). Heat treated to produce a sharp sword (steel product).