1997GOST 31.1066.04-1997 Attachments for metal-cutting tools. Cam arbors. General specifications
1972GOST 17531-1972 Flanged cam arbors with pneumatic clamp. Design and dimensions
GOST 17531-1972 Flanged cam arbors with pneumatic clamp. Design and dimensions was changed to GOST 31.1066.04-1997 Attachments for metal-cutting tools. Cam arbors. General specifications.