Precious or semi-precious stones (natural, synthetic or reconstructed )on a support of base metal, metal car-bide or cermet;
装于贱金属、硬质合金或金属陶瓷底座上的宝石或半宝石(天然、合成或再造);
Precious or semi-precious stones (natural, synthetic or reconstructed )on a support of base metal, metal car-bide or cermet;
装于贱金属、硬质合金或金属陶瓷底座上的宝石或半宝石(天然、合成或再造);
应用推荐