Flameproof industrial thermocouple, thermal resistance as the temperature measurement and control instruments, meproof junction box products (shell) in the design of high-strength aluminum alloy die-casting from, and have sufficient internal space, wall thickness and mechanical strength, thermal stability of rubber seals are in line with the national explosion-proof standards. Therefore, when a junction box inside the explosive gas mixture explosion occurred, the internal pressure will not affect the junction box, and the resulting heat can not spread - booster. As long as users use the rules of strict compliance with the product, the product will be able to achieve reliable results of the explosion. According to the order