查塔姆助熔剂法合成红宝石&具暗色核心的新品种
Chatham flux-grown synthetic ruby : a new variety with dark coloured cores
一种具暗色核心的助熔剂法合成红宝石近期由查塔姆公司推向珠宝市场。
A variety of Chatham flux-grown ruby with the dark coloured cores developed by the Chatham Company is available in gem markets recently .
助熔剂法合成红宝石