Supply proof junction box, explosion-proof junction box, the amount of giant electrical equipment completed its function in the system in use shall be subject to wire or cable and power supply network to link up to form. But its connecting wires or cables impossible infinitely long, and there are many places in the connection process need series, parallel wire tap. This will inevitably result in the joint portion of the outer filter easily lead to accidents. Proof junction box products products is to solve this kind of problem, in order to further ensure safety in production. Such products include wiring boxes, junction boxes, stringing box hanging boxes, junction boxes and other products, its the shell mainly from cast aluminum alloy manufacturing. Needed a lot of incoming and outgoing introduction of the device, the box equipped with a terminal block, used to connect or tap with. Most of these products are made of flameproof or increased safety, some small volume, large differences Explosion levels up Ⅱ C level. Amount giant explosion-proof electrical equipment factory in Shanghai has a professional design team, innovative product design, reliable performance, products with explosion-proof, anti-corrosion, waterproof, dustproof, and small size, light weight, easy installation specifications completely, can be widely used in petroleum, chemical industry, light industry, medicine, military, and other enterprises. Shanghai amount of giant distinctive electrical switches exports to countries supporting the project in the Middle East, freedom of assembly compound operation column installation according to user requirements increase or decrease by the majority of users at home and abroad.