
AIR FILTERS FOR GENERAL VENTILATION - PART 1: TECHNICAL SPECIFICATIONS, REQUIREMENTS AND CLASSIFICATION SYSTEM BASED UPON PARTICULATE MATTER EFFICIENCY (EPM)
出版:International Organization for Standardization

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AIR FILTERS FOR GENERAL VENTILATION - PART 1: TECHNICAL SPECIFICATIONS, REQUIREMENTS AND CLASSIFICATION SYSTEM BASED UPON PARTICULATE MATTER EFFICIENCY (EPM)
出版:International Organization for Standardization
专家解读视频