New on the stand of William Briggs and Sons Ltd. was the aquot; Bitumetal aquot; short- span decking in 20 S.W.G. and 22 S.W.O. aluminium-alloy sheet. ... The display of aluminium exhibits on industrial and domestic ventilation on the stand of Colt Ventilation Ltd. included a wide range of ventilators of all ... Ltd. was a sliding and swinging schoolboard using special aluminium sections for the pillars and guides .
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