Cold pressed terminals, also known as insulated terminals, are electronic connectors and air connectors. It is an accessory product used for electrical connection, which is divided into connectors in industry. As the degree of industrial automation becomes higher and higher and the requirements of industrial control become more and more strict and accurate, the consumption of terminal blocks is gradually increasing. With the development of the electronic industry, more and more terminals are used, and more and more types are available. At present, in addition to PCB board terminals, there are hardware continuous terminals, nut terminals and spring terminals that are most widely used