Founded in 2006, Tangshan ZhengCheng Automation Science&Technology Co., Ltd one of the professional trading company and manufacturer, located in Tangshan City, Hebei Province, China. We manufacture and export various low voltage electrical products: Air Circuit Breaker, Moulded Case Circuit Breaker, Din-rail, Control electrics, Power Source, Electrical accessories. Our export products have been approved by CE, CB, SEMKO, VDE, KEMA and other relative export standard tests, enjoying a high reputation in the international market.