
ISO 6508-2 - METALLIC MATERIALS - ROCKWELL HARDNESS TEST (SCALES A,B,C,D,E,F,G,H,K,N,T) - PART 2: VERIFICATION OF TESTING MACHINES
出版:British Standards Institution

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ISO 6508-2 - METALLIC MATERIALS - ROCKWELL HARDNESS TEST (SCALES A,B,C,D,E,F,G,H,K,N,T) - PART 2: VERIFICATION OF TESTING MACHINES
出版:British Standards Institution
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