leofong

歷屆奧運奬牌, 金牌都是合金的，

這屆的應該最值錢，奬牌是金鑲玉的，
特别的是, 採用新疆和田玉和青海白玉打造,

獨一無二的創意，金的成色也更高！




Beijing Olympic medal reverse side






Obverse side







Selecting stones







Jade cutting












Jade polishing











Checkup details











Medal mould











Bronze medal











Medal machine tool











Medal after punching











Groove making machine









Groove checking-up











Putting jade into the medal