
Plastics - Smoke generation Part 2: Determination of optical density by a single-chamber test (ISO 5659-2:2006)
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)

專家解讀視頻
Plastics - Smoke generation Part 2: Determination of optical density by a single-chamber test (ISO 5659-2:2006)
出版:German Institute for Standardisation (Deutsches Institut f眉r Normung)
專家解讀視頻