The product classification can be summarized as follows: 1. The explosion-proof control box category mainly includes lighting distribution boxes used for controlling lighting systems and power boxes used for controlling power systems. Most of these products have a modular structure that can control up to 12 circuits. The shell is mostly made of cast aluminum alloy material, some are welded to steel plates, and a few are made of insulating material. Its interior mainly consists of circuit breakers, contactors, and thermal relays. Conversion switches, signal lights, buttons and other components are composed, and manufacturers can also choose to equip them according to user needs. The highest explosion-proof level can reach level II CT6. By the way, it should be pointed out that explosion-proof automatic switches, explosion-proof knife switches, and fuses are also commonly used in some control situations to control the circuit opening and closing of power or lighting distribution systems, only becoming a single piece. Therefore, these products are also classified as such. 2. Explosion-proof starter products include manual starters, electromagnetic starters, reversible electromagnetic starters, self coupling voltage reducing starters, and Y-type starters Δ Transform products such as step-down starters and feed switches. Explosion-proof starter products, as terminal control equipment, typically control one motor with one starter, and belong to a wide range of products. The outer shell is usually made of cast aluminum alloy or steel plate. Its interior is generally composed of components such as contactors (air or vacuum type), motor protection systems, signal lights, buttons, and autotransformer OS, and generally has local control, remote control, and automatic control functions. Some products also have circuit breakers installed as main switches, making the product more complete. The market demand for explosion-proof control switches is relatively high, so there are also many manufacturers, mainly including small explosion-proof products such as lighting switches, transfer switches (combination switches), travel switches, and pull switches. The explosion-proof level of these products can reach IICT6 level, and their explosion-proof shell is usually a composite structure made of cast aluminum alloy die-casting. There are also a few manufacturers using other materials for shells. The characteristics of this type of product are small size, single internal components, low technical content, simple structure, and easy production. 4 explosion-proof master electrical appliances are switch appliances used to close or open control circuits to issue commands or program control. This type of explosion-proof electrical appliance mainly includes control buttons and operation columns. The explosion-proof control button shell is generally made of polycarbonate, glass fiber reinforced unsaturated polyester resin or ABS plastic injection molding, and there are also a small amount of aluminum die-casting. The general structure is an increased safety shell, equipped with explosion-proof components, and can achieve anti-corrosion function. The explosion-proof level can reach IIC level. The operation column mainly consists of a main box, a junction box, and pillars. Some of the main boxes and junction boxes are made into one unit, while others are made into separate units, each with its own characteristics. Its material is basically made of cast aluminum alloy material. The interior is composed of various instruments, transfer switches, buttons, and signal lights. It can be combined according to different needs. Electrical equipment such as explosion-proof junction boxes must be connected to the power supply network through wires or cables during use to form a system to complete their functions. But its connecting wires or cables cannot be infinitely long, and there are many places that need to be connected in series or parallel for wire tapping during the connection process. This inevitably leads to external filtration of the joint, which can easily lead to accidents. Explosion-proof junction box products are produced to solve such problems, in order to further ensure safe production. This type of product includes junction boxes, junction boxes, threading boxes, suspension boxes, junction boxes, and other products, with their shells mainly made of cast aluminum alloy. There are many incoming and outgoing line entry devices as needed, and wiring terminals are installed inside the box for connection or tapping purposes. Most of these products are made into explosion-proof or increased safety types, with varying volumes and significant differences. The explosion-proof level can reach IIC level