| 摘要 |
Alloy gold, apart from gold containing silver and unavoidable impurities, characterised in that it additionally contains platinum, silicon and phosphorus, the platinum content by weigh amounts to 0.001-0.500%, silicon 0.001-0.500%, phosphorus 0.001-0.300%, silver 0.001-0.500%, and the rest is gold and unavoidable impurities amounting up to 0.055%.
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