
Metallic Materials - Rockwell Hardness Test - Part 1: Test Method (scales A, B, C, D, E, F, G, H, K, N, T)
出版:International Organization for Standardization

專家解讀視頻
Metallic Materials - Rockwell Hardness Test - Part 1: Test Method (scales A, B, C, D, E, F, G, H, K, N, T)
出版:International Organization for Standardization
專家解讀視頻