Coal mining companies

The article presents the current status of technological innovation in underground coal mining of Dong Bac Corporation. The primary research subject is the semi-mechanized longwall face I-6-2 at Bac Quang Loi coal mine of Company 790, Dong Bac Corporation.

10p viyamanaka 06-02-2025 2 2   Download

Build a feasible and scientific basis for the contents of inovation of planification of coal mining companies in Vinacomin in the current context.

27p trinhthamhodang1217 14-01-2021 28 4   Download