
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:International Organization for Standardization

專家解讀視頻
GB/T 230.3-2002 - Modified
AS 1815.3-2002 - Identical
BS EN ISO 6508-3:1999 - Identical
DR 02084 CP - Identical