
Leather - Physical and mechanical tests - Determination of apparent density and mass per unit area (ISO 2420:2017)
出版:Standardiserings-Kommissionen I Sverige

专家解读视频
Leather - Physical and mechanical tests - Determination of apparent density and mass per unit area (ISO 2420:2017)
出版:Standardiserings-Kommissionen I Sverige
专家解读视频