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Updated: May 20, 2025
The metal known as calcium bronze, which is now so common, is an alloy of calcium, 0.75; aluminium, 0.20; and 0.05 of other metals and metalloids in varying proportions according to different patents. This alloy has all the useful properties of the finest steel with about one-fourth its weight, and is besides perfectly non-oxydisable and never tarnishes.
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