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Timepiece or piece of jewellery made of gold
Timepiece or piece of jewellery made of gold
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机译:黄金制成的钟表或珠宝
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摘要
A timepiece or piece of jewellery made of a nickel free and cobalt free gold alloy, the composition of which includes by weight between 75% and 77.5% gold, between 1.2 and 1.6% palladium, and between 20.1 and 23.8% copper.
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