DIN EN ISO 2143 : 2018现行
Anodizing of aluminium and its alloys –Estimation of loss of absorptive power of anodic oxidation coatings after sealing –Dye-spot test with prior acid treatment (ISO 2143:2017);German version EN ISO 2143:2017
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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