NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
DIN ISO 9285
DIN ISO 9285
Abrasive grains and crude - Chemical analysis of fused aluminium oxide (ISO 9285:1997)
Title (German)
Schleifmittelkörnungen und Rohstoffe - Chemische Analyse von Elektrokorund (ISO 9285:1997)