
Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids
出版:Asociacion Espanola de Normalizacion

专家解读视频
Fire extinguishing media - Foam concentrates - Part 4: Specification for low expansion foam concentrates for surface application to water-miscible liquids
出版:Asociacion Espanola de Normalizacion
专家解读视频