
Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2019)
出版:Comite Europeen de Normalisation

專家解讀視頻
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Plastics - Methods for determining the density of non-cellular plastics - Part 2: Density gradient column method (ISO 1183-2:2019)
出版:Comite Europeen de Normalisation
專家解讀視頻