
Abrasive grains - Test-sieving machines
出版:International Organization for Standardization

专家解读视频
AS/NZS 4521:1997 - Identical
DR 97166 CP - Identical
DIN 69109 (1985-12) - Equivalent
DIN ISO 9284 (1996-09) - Identical
BS 7425-4:1993 - Equivalent
NF ISO 9284:1993 - Identical
AS/NZS 4521:1997 - Identical
PN ISO 9284:2000 - Identical