1. Guilin University of Technology Material Science and Engineering School Jiangan Road 514004 GUILIN, P. R. CHINA
2. China Non ferrous Metal (Guilin) Geology and Mining Co., Ltd, R&D Department Tieshan Road 541004 GUILIN, P. R. CHINA
3. Zigong Cemented Carbide Co., Ltd, R & D Center, Da'an District Renmin Road 643011 ZIGONG, P. R. CHINA