NA 121
DIN Standards Committee Tools and Clamping Devices
Standards
[Withdrawn]
DIN 837
DIN 837
Double-ended Ring Spanners with Unequal Openings; Proof-test Torques according to Series B
Title (German)
Doppelringschlüssel mit ungleichen Schlüsselweiten; Prüfdrehmomente nach Reihe B