Reducing waste-rock dilution in narrow-vein conditions at tungsten mines in China

Mining Science and Technology - Tập 4 - Trang 1-7 - 1986
Li Yihong1, Zhang Weijin1
1Changsha Research Institute of Mining and Metallurgy, Ministry of Metallurgical Industry, P.O. Box 67, Changsha, Hunan (China)