Master controller is constructed of shell and explosion-proof components.
主令控制器由外壳和防爆元件等组合而成。
2
Our company is committed to professional vacuum series explosion-proof electrical production.
本公司专业致力于真空系列防爆电器的生产。
3
The safety performance has met national authority explosion-proof standards, in full accordance with the national standards for explosionproof production.