The supply explosion-proof electrical explosion-proof lamps, Shanghai amount giant explosion-proof lighting switch, supply explosion-proof electrical explosion-proof lamps, Shanghai amount of a giant explosion proof lighting switch, supply explosion-proof electrical explosion-proof lamps, Shanghai amount giant explosion-proof lighting switch SW-10 series of explosion-proof lighting switch ( Ⅱ B) Application 1 and Zone 2 hazardous locations. 2, Ⅱ A, Ⅱ B class for explosive gas atmospheres. Product Features 1, aluminum alloy shell with plastic sprayed surface. Increased safety-type housing, internal components flameproof switch. 3, the product has a waterproof, dustproof and features. 4, pipe and cable wiring.