???

?????????????Hebei University Of Engineering?????????????????University of International Business and Economics???????????????Central South University????????????DGK?????????????

????????????????????Shandong Zhaojin Group Co., Ltd.??????????????????????????????????????????????????????????????DGK???????????????????Zhaojin Non-ferrous Mining Co., Ltd.?????????????????????????????????????China Non-Ferrous Metals Industry Association????????

?????????????????????????????????????China Gold Association?“?????”???????????“??????”??????????????????????????