Ju Jianhua, Director of the Mineral Resources Protection Supervision Department of the Ministry of Natural Resources: There are 11 changes in the new standard of "Classification of Solid Mineral Resources Reserves"|钻机设备|勘探钻机|岩芯钻机-Shandong Zhongkan Machinery Co., Ltd.

News Information

Ju Jianhua, Director of the Mineral Resources Protection Supervision Department of the Ministry of Natural Resources: There are 11 changes in the new standard of "Classification of Solid Mineral Resources Reserves"

Release Time：2020-05-15 Edit：ZHK Access：3905

Key Word：固体矿产资源

Product List

CONTACT Contact Us