Good security: as the Operation temperature of LED lights is low, lamps 'structure is reasonable, explosion, impact resistance, and high sealing performance, it is safe to use in the underground.
安全性能好：由于LED灯工作温度低，灯具结构合理，隔爆、抗冲击、密封性能高故井下使用安全性能好。
The spray gun can work normally in a high-temperature steel pipe, and has the advantages of simple structure and convenient use.
该喷枪可以在高温的钢管内正常的使用，具有结构简单使用方便的优点。
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