Hydraulic retractable folding type pedestrian gap bridge for coal mine reversed loader
CHENG XIBIN, GAO JUN, CHEN MIAO, ZHAO PENGPENG, ZHU YAN, XU QIANG, ZHOU DINGDING, MA CANGWANG, HUANG ANTING, LYU HONGFENG, ZHANG YIFAN
Year of Publication 26.11.2021
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Year of Publication 26.11.2021
Patent