Waterproof Connector, Industrial Plug and Socket, Waterproof Junction Box manufacturer / supplier in China, offering Waterproof Air Vent Plug Screw Automatic Exhaust Breather Valve IP68 Nylon Breathable Valve, IP67 Waterproof Industrial Electric Plug and Socket Male Female Socket 63A 125A, Waterproof Breathable Valve Plug in Nickel Plated Brass with IP68 Air Vent Plug and so on.