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2009-08-07 | All chapters

MLR: < Classification of solid mineral resource / reserve > draft

国土资源部办公厅关于征求《固体矿产资源/储量分类》（征求意见稿）意见的函

http://www.mlr.gov.cn/xwdt/zytz/200908/t20090803_123477.htm

(Energy)