GB/T 3836.23-2017爆炸性环境第23部分:用于瓦斯和/或煤尘环境的I类EPLMa级设备国家标准
英文:Explosive atmospheres—Part 23:Group I,category EPL Ma equipment intended to remain functional in atmospheres endanger...
英文:Explosive atmospheres—Part 23:Group I,category EPL Ma equipment intended to remain functional in atmospheres endanger...