Serving the nation since 1947 by providing an accurate, objective, uninterrupted flow of news to the people, the national ...

4月24日国内钆铕钇系市场部分价格下滑，氧化钆价格下滑2500元/吨至17.25万元/吨，氧化铕价格为18万元/吨，钆铁合金价格下滑2500元/吨至17万元/吨，氧化钇价格为49000元/吨，国内轻稀土市场价格走势下滑，但是下游仍处于按需采购阶段，短期之内价格震荡为主。

The Embassy of Pakistan in Beijing, working closely with Pakistan Consulates General in Shanghai, Chengdu, and Guangzhou, successfully facilitated the participation of 200 Chinese companies, a 100% ...

but it can also render organic compounds highly toxic or pollutants. Fluorine's name derives from fluorspar — or fluorite, CaF 2 (pictured) — which in earlier times was used as a flux to ...