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. It can be equipped with explosion-proof button and increased safety ammeter.

3. The button with ammeter can monitor the running status of the device.