Push Button Switch, Sensor Switch, Overload Protector manufacturer / supplier in China, offering Stainless Steel 3pin 2position Key Switch Waterproof 19mm 1no1nc Flat Key Latching IP65 Level 5A 250VAC 3A Max Key Switch, 19mm Stainless Steel 3 Position 8 Pins Metal Rotary Control Metal Pushbutton Switch 220V Waterproof Metal Switch, 3 Phase Oil Type Transformer 200kVA 11kv High Voltage Distribution Transformer and so on.