As part of its long-term investment program, Acron Group implements a project of complex apatite-nepheline rock processing at Veliky Novgorod production site to produce rare earth elements (REE) cerium, lanthanum, neodymium, concentrates of light, medium and heavy rare earth elements from apatite concentrate process flows
Здесь можно оставить свои комментарии. Выпуск подготовленплагином wordpress для subscribe.ru