Specification for manhole covers, road gully gratings and frames for drainage purposes: part 1:

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Sonraí Bibleagrafaíochta
Údar Corparáideach: British Standards Institution.
Formáid: Leabhar
Teanga:English
Foilsithe: London: The Institution, 1976
Sraith:B.S.; 497 : part 1 : 1976
Ábhair:
Clibeanna: Cuir Clib Leis
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