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Casting The basic process of forming a shaped article by pouring and solidifying molten metal in a mould, which has many variations in gold.
In the manufacture of gold bars, it distinguishes between those cast in a mould (such as good-delivery-bars or kilobars) and small bars which are stamped out of a metal strip.
Continuous casting allows a constant shape to be withdrawn from the bottom of a mould as the metal solidifies so that semi-finished products such as strip and tubes can be produced.
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About Precious Metals.com 2005 |