
Cold drawn seamless mild steel boiler and superheater tubes for design steam temperatures not exceeding 850°F (454°C).
NORMA vydána dne 1.6.1942
Designation standards: BS 494:1933
Note: NEPLATNÁ
Publication date standards: 1.6.1942
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS