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Feasibility Study Report of Guizhou Bide Coal Industry Co., Ltd. Coal Preparation Plant - Third Prize for Excellent Engineering Consulting Achievements in the 2022 Coal Industry (Ministerial level)

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5、貴州比德煤業有限公司選煤廠可行性研究報告-2022年度煤炭行業（部級）-優秀工程咨詢成果三等獎.jpg

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