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hgundas 发表于 2020-4-3 21:55:33

ISO 11127-4:2011 Preparation of steel substrates before application of paints an

ISO 11127-4:2011
Preparation of steel substrates before application of paints and related products —
Test methods for nonmetallic blast-cleaning abrasives —
Part 4:
Assessment of hardness by a glass slide test

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