
Air Filter For General Ventilation - Part 2: Measurement Of Fractional Efficiency And Air Flow Resistance (iso/dis 16890-2:2014)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Air Filter For General Ventilation - Part 2: Measurement Of Fractional Efficiency And Air Flow Resistance (iso/dis 16890-2:2014)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频