Tungsten metallurgy products mainly include ammonium paratungstate, tungsten trioxide, blue tungsten oxide, violet tungsten oxide, tungsten powder, ammonium metatungstate, tungsten carbide powder. Ammonium paratungstate is the main intermediate product and the raw material in tungsten metallurgy products.
http://news.chinatungsten.com/en/tungsten-information/94907-ti-12210
