Κίνα Nuoxing Cable Co., Ltd εταιρικά νέα

In many cases, the wires we have used for a long time will appear black. What causes it? (1) It may be that the area of ​​the wire drawing emulsified oil pool is small, the return pipe is short and sealed, which results in slow heat dissipation and high temperature of the emulsified oil. (2) It is ... Διαβάστε περισσότερα