Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 54
Aliminium.—Aluminium hardens by the temper-ing produced by long rolling, hammering, stamping or stretching.The effect is more marked when the metal is heated to a red heatand cooled suddenly in water. Aluminium alloyed with titaniummay undergo a double tempering. The operation consists in… … As The Tpadep aims to be of ppactical assistance to theRetail Jewelers of Canada, it makes no chapg-e for ordinapyadvertisements in this column. The subject mattep of anyadveptisement must not exceed 50 viropds, and must peachus not latep than the 20th of the month. In no case willansw^eps to…
Jewelry · Jewelry trade
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