Glass (vitreous) enamelled salt-glazed fireclay pipes.
NORMA vydaná dňa 3.2.1953
Designation standards: BS 540:1952
Note: NEPLATNÁ
Publication date standards: 3.2.1953
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS