BS 57:1920

Heads for British association screws.

NORMA vydaná dňa 1.12.1920

The information about the standard:

Designation standards: BS 57:1920
Note: NEPLATNÁ
Publication date standards: 1.12.1920
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS