Aluminium casting patterns. Fixing of loose pieces. Design and dimensions
STANDARD published on 1.1.1977
Designation standards: GOST 21081-75
Publication date standards: 1.1.1977
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 4.82