Leveler for large-diameter thick-wall spiral welded pipe
WU XINHANG, XU XUFENG, REN LICHUN, ZHANG XINGZHI, ZHANG MING, XU LIANG, PARK YONG, WEI JUN, CHEN JING, SANG WEI
Year of Publication 27.05.2022
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Year of Publication 27.05.2022
Patent