BS 497:1952

Cast manhole covers, road gully gratings and frames for drainage purposes.

NORMA vydaná dňa 20.2.1956

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The information about the standard:

Designation standards: BS 497:1952
Note: NEPLATNÁ
Publication date standards: 20.2.1956
The number of pages: 17
Approximate weight : 51 g (0.11 lbs)
Country: British technical standard
Kategória: Technické normy BS