Shanghai expedition electric technology co., LTD. Is a collection of product development production and sales for the integration of modern enterprises in the national grid high voltage subclass product and the epoxy resin automatic pressure gelation (APG) process 12 KV 24 KV, 40.5 KV high-voltage insulation products in recent years has been ongoing new product research and development products involving KYN61 GZS1 KYN1 HXGN ZN85 VS1 ZN23 ZN28 digital readout circuit breaker insulation parts and sensor static contact DXN charged display device Meihua contact contact arm ground switch PT handcart isolated handcart, etc., and the production of electromagnetic lock, program lock mechanical lock temperature and humidity controller heater light detuner！