Downhole roadway U-shaped beam forcible entry and cutting all-in-one machine and method thereof
WANG ZONGJIE, LIU LINGBING, WANG CHUANGCHUANG, ZHANG TENGFEI, LIU YINGGUO, LI HAO, YANG ZENG
Year of Publication 24.11.2023
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Year of Publication 24.11.2023
Patent