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Cast iron airbricks and gratings (for use in brickwork).
STANDARD published on 26.6.1933
Designation standards: BS 493:1933
Note: WITHDRAWN
Publication date standards: 26.6.1933
SKU: NS-69046
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS
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Latest update: 2024-07-18 (Number of items: 2 337 971)
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