A worker makes a helicopter part at the Shanxi Helicopter Development and Manufacturing Base in Taiyuan, north China's Shanxi Province, May 25, 2021. The Shanxi Helicopter Development and Manufacturing Base, headquartered in Taiyuan, went into operation recently. The base has a professional helicopter design and research team, with more than 7,000 proprietary designs. At present, the base mainly produces single-engine two-seat and double-engine four-seat helicopters,which serve tourism, agriculture, flight training, fire rescue and medical assistance purposes. (Xinhua/Cao Yang)
