It is made of mate「ials such as ABS and PC, etc, elegant external shape, high firmness. Combined body and cover are fixed with four plastic screws that are difficult to fall off. Its specification and size can be designed based on the customer requirements. Economic and affordable. Net weight only accounts for the iron box of about 1 /4, to facilitate handling and operation, no corrosion, good insulation. Waterproof junction box purpose: electrical, electronics, communication, fire fighting equipment, control panel, terminal box, large factory, coastal plant, environmental hazard facility, etc. Materials can be selected acco「ding to the customer's requirements.