Hebei GEO University;
Shijiazhuang 050031;
China;
University of Science and Technology Beijing;
Beijing 100083;
China;
Chongli Capital Mining Co.;
Ltd.;
Chongli;
Hebei 076350;
China;
Zijin Mining Group Co.;
Ltd.;
Changchun;
Jilin 130012;
China;
North China Institute of Science&Technology;
Langfang;
Hebei 065201;
China;