Director Zhang Xiwang will give a special technical lecture at the on

On July 29th, the On-site Seminar on Advanced Support Technology for Roadways in Fully Mechanized Mining Face, hosted by the China National Coal Association, co-organized by the Coal Mine Support Professional Committee of the China National Coal Association and China Datang Energy Investment Co., Ltd., and sponsored by Erdos Guoyuan Mining Development Co., Ltd. and Liaoning Xinfeng Mining (Group) Co., Ltd., was held in Jungar Banner, Erdos City.

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