DIN 51224 (1985)被替代
Materials Testing Machines; Hardness Testing Machines With A Depth-measuring Device
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
85
ISO 716:1986 - Similar
EURONORM 122:1975 - Similar
ISO 1079:1989 - Similar
EURONORM 122 : 1975 - Similar to
ISO 716 : 1986 - Similar to
EURONORM 122 : 1975 - Similar to
ISO 1079 : 1989 - Similar to
ISO 716 : 1986 - Similar to
