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Zhu Wentao measures a machined part in the workshop in Qiqihar, northeast China's Heilongjiang Province, Nov.29, 2018. As a senior technician of China Railway Rolling Stock Corporation (CRRC) Qiqihar Co. Ltd., Zhu has received prizes multiple times for his excellent occupational performance. Being the master of tools, he is able to lathe steel scraps as fine as less than one-seventh the diameter of ordinary human hair. (Xinhua/Wang Jianwei)
