
Metallic Materials - Rockwell Hardness Test - Part 3: Calibration Of Reference Blocks (scales A, B, C, D, E, F, G, H, K, N, T)
出版:Brazilian Standards

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Metallic Materials - Rockwell Hardness Test - Part 3: Calibration Of Reference Blocks (scales A, B, C, D, E, F, G, H, K, N, T)
出版:Brazilian Standards
專家解讀視頻