XI’AN REFRA TUNGSTEN & MOLYBDENUM CO.,LTD.(REFRA) is not only a high-tech enterprise but also a holding subsidiary controlled by listed corporation Western Metal Materials. The predecessor of REFRA is the Sixth Research Department of Northwest Institute for Non-ferrous Metal Research, which is a research、processing base、industry and technology development center of China’s important rare metal materials. REFRA develops from Tungsten & Molybdenum Materials and Products Branch of Western Metal Materials (WMM)...