NA 121
DIN Standards Committee Tools and Clamping Devices
Draft standard
ISO/DIS 21951
ISO/DIS 21951
Coated abrasives - Plain discs with holes for dust extraction
Title (German)
Schleifmittel auf Unterlagen - Runde Schleifblätter mit Staubabsauglöchern
Responsible national committee
NA 121-04-03 AA - Coated abrasives