NA 027
DIN Standards Committee Optics and Precision Mechanics
Standards
[Withdrawn]
DIN 8257-3
DIN 8257-3
Jewels for fine mechanics; watch jewels, ring jewels
Title (German)
Lagersteine der Feinwerktechnik; Lochsteine für Uhren, planparallel
Document: referenced in other documents
Responsible national committee
NA 027 - DIN Standards Committee Optics and Precision Mechanics