BS 3172-2:1980

Screw threads for spectacle frames. Specification for screw threads (metric series) for spectacle frames.

NORMA vydaná dňa 30.9.1980

The information about the standard:

Designation standards: BS 3172-2:1980
Note: NEPLATNÁ
Publication date standards: 30.9.1980
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS