GB/T 12476.3-2017可燃性粉尘环境用电气设备第3部分:存在或可能存在可燃性粉尘的场所分类国家标准
英文:Electrical apparatus for use in the presence of combustible dust—Part 3: Classification of areas where combustible du...
英文:Electrical apparatus for use in the presence of combustible dust—Part 3: Classification of areas where combustible du...