 - Vacuum Circuit Breaker- Shanghai Metal Corporation is a leading Vacuum Circuit Breaker manufacturer and supplier. Vacuum circuit breaker is an indoor distribution device in a 3-10kV, 50Hz three-phase AC system, which can be used for the... Shanghai, China
 - High frequency circuit breaker- Manufacturer: YanZhen
 - PU glove heat sealing and punching integrated high-frequency fuse machine, used for continuous welding, punching, and receiving of soft roll materials such as PVC, EVA, PET, etc. Products such as card covers, boo... Shanghai, China

