rolled gold
柯林斯词典
1. N a metal, such as brass, coated with a thin layer of gold, usually of above 9 carat purity. It is used in inexpensive jewellery 包金 (Also called (US) filled gold)
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1. N a metal, such as brass, coated with a thin layer of gold, usually of above 9 carat purity. It is used in inexpensive jewellery 包金 (Also called (US) filled gold)