EURONORM 122:1975被替代
Investigation Of Hardness Testers With Penetration Depth Measuring Equipment (rockwell Hardness Measurement,method B,c , N And T)
出版：European Committee for Iron & Steel Standardization
专家解读视频
75 [01/03/1975]
DIN 51224 (1985) - Similar
DIN 51304 (1983) - Similar
DIN 51224 : 1985 - Similar to
DIN 51304 : 1983 - Similar to
NEN EU 122 : 1986 - Identical
DIN 51304 : 1983 - Similar to
DIN 51224 : 1985 - Similar to
