The jewellery such as a ring is made by applying the gold in the solid state onto the platinum which is the support metal and then heating the gold up to its melting temp. The finished ring then has the full lustre of gold without the need for any subsequent finishing such as polishing. The melted gold bonds tightly with the platinum. The end product can then be worked as required by mechanical tools. Other items such as bracelets, chains, brooches etc. can be made in a similar way.
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