
Metallic materials - Rockwell hardness test Part 2: Verification and calibration of testing machines (scales A, B, C, D, E, F, G, H, K, N, T)
出版:International Organization for Standardization

专家解读视频
GB/T 230.2-2002 - Modified
DR 02083 CP - Identical
AS 1815.2-2002 - Identical
BS EN ISO 6508-2:1999 - Identical