
En 12373-21 Aluminium And Aluminium Alloys - Anodizing - Part 21: Method For Specifying Decorative And Protective Anodic Oxidation Coatings On Aluminium
出版:British Standards Institution

專家解讀視頻
En 12373-21 Aluminium And Aluminium Alloys - Anodizing - Part 21: Method For Specifying Decorative And Protective Anodic Oxidation Coatings On Aluminium
出版:British Standards Institution
專家解讀視頻