
Agreed Rockwell Hardness Measurement Hrn And Hrt; Rockwell Hardness Measurement Hrbm And Hr 30 Tm For Thin Products
出版:European Committee for Iron & Steel Standardization

专家解读视频
1980 [01/06/1980]
DIN 50103-2 : 1984 - Similar to
NEN EU 109 : 1986 - Identical
DIN 50103-2 : 1984 - Similar to
DIN 50103-3 (1995-01) - Similar
DIN 50103-2 (1984-03) - Similar