A pin is a flexible needle, mostly made of metal. One end is fixed, the other end is sharp and can be opened and closed, and most of them are fixed with metal. Used to fasten pieces of cloth, paper, etc. Together. Divided into pins, and paper clips (paper clips, also known as safety pins). It includes:
The feature of denim jacket pins
The feature of denim jacket pins itroduce.
Color is durable. The texture of enamel jewelry is relatively delicate, and it has stable properties of high temperature resistance and corrosion resistance. The enamel is mixed with minerals such as silicon, lead, borax, feldspar, quartz, etc. In an appropriate proportion, and various metal oxides of different colors are added respectively. After roasting and grinding into powdery color materials, according to different processes, an artistic process of inlaying or painting on a metal matrix. Metal chisel engraving is a traditional metal processing method in ancient my country.