GB/T 8753.1-2017铝及铝合金阳极氧化氧化膜封孔质量的评定方法第1部分:酸浸蚀失重法Anodizing of aluminium and its alloys—Assessment of quality of sealed anodic oxidation coatings—Part 1:Measurement of the loss of mass after immersion in acid solution(s)

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