
Methods Of Test For Paints - Optical Tests On Paint Films - Determination Of Contrast Ratio (Opacity) Of Light-Coloured Paints At A Fixed Spreading Rate
出版:British Standards Institution

專家解讀視頻
Methods Of Test For Paints - Optical Tests On Paint Films - Determination Of Contrast Ratio (Opacity) Of Light-Coloured Paints At A Fixed Spreading Rate
出版:British Standards Institution
專家解讀視頻