Dimensions of drain fittings salt-glazed ware and glass (vitreous) enamelled fire clay.
NORMA vydána dne 12.3.1934
Designation standards: BS 539:1934
Note: NEPLATNÁ
Publication date standards: 12.3.1934
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS