About Chang Jun
About 長沙有色冶金設計研究院有限公司,湖南長沙 410011
About Ceng Lingfang
About 長沙有色冶金設計研究院有限公司,湖南長沙 410011
About Caikuang Jishu
About bauxite
About operation performance
About plow
About laterite
About process planning
About mine
About mining operations
About open pit mining
About construction method
About piercing
About 組合せ採掘
About Open pit mining
About 赤土
About ボーキサイト
About 採掘
About プロセス
About 研究