
Reference Test Method For Release Of Nickel From Those Parts Of Spectacle Frames And Sunglasses Intended To Come Into Close And Prolonged Contact With The Skin
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Reference Test Method For Release Of Nickel From Those Parts Of Spectacle Frames And Sunglasses Intended To Come Into Close And Prolonged Contact With The Skin
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻