Three kinds of precious metal materials for jewellery and their preparation have been introduced, they are precious metals plasticine, spangold, a new jewellery alloy with an innovative surface finish and coloured platinum products.
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- 介绍三种新型贵金属饰品材料以及制备工艺,这三种新型材料为:贵金属造型材料(PreciousMetalsPlasticine,简称为PMP),Spangold,一种具有奇特表面花纹的饰品金合金和彩色铂饰品。