
Vitreous and porcelain enamels - Release of lead and cadmium from enamelled ware in contact with food Part 2: Permissible limits (ISO 4531-2:1998)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Vitreous and porcelain enamels - Release of lead and cadmium from enamelled ware in contact with food Part 2: Permissible limits (ISO 4531-2:1998)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频