1. The shell is pressed and formed with high-strength aluminum alloy, and the surface is sprayed with high-speed shot blasting and electrostatically sprayed. The outer casing structure is compact, the material density is high, the strength is good, and the explosion-proof performance is excellent. The surface plastic powder has strong adhesion and good anti-corrosion ability, and the surface is smooth and beautiful.

 

2. The latch and the switch are made into an interlocking mechanism, and the plug can be pulled out only after the switch is disconnected.