
Iso 6508-3 - Metallic Materials - Rockwell Hardness Test (scales A,b,c,d,e,f,g,h,k,n,t) - Part 3: Calibration Of Reference Blocks
出版:British Standards Institution

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Iso 6508-3 - Metallic Materials - Rockwell Hardness Test (scales A,b,c,d,e,f,g,h,k,n,t) - Part 3: Calibration Of Reference Blocks
出版:British Standards Institution
专家解读视频