1. Hubei Three Gorges Polytechnic,College of Mechanical and Electrical Engineering,Yichang,China
2. Southeast University,Chengxian College,Nanjing,China
3. HXF SAW CO., LTD, China Metallurgical Geology Bureau,Technology Research Center,Yichang,China
4. Hubei Three Gorges Polytechnic,College of Economics and Management,Yichang,China
5. Wuhan University of Technology,School of Materials Science and Engineering,Wuhan,China