
Specification for H-section steel arches for use in mines.
NORM herausgegeben am 11.12.1970
Designation standards: BS 227:1970
Note: UNGÜLTIG
Publication date standards: 11.12.1970
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: British technical standard
Kategorie: Technische Normen BS