Wooden windows casements and solid frames, double hung sashes, and cased frame windows..
NORMA vydána dne 9.12.1935
Designation standards: BS 644:1935
Note: NEPLATNÁ
Publication date standards: 9.12.1935
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS