Hafei and Dongan? What is the full name (give points)

Hafei, located in Pingfang District of Harbin, was originally named Harbin Aircraft Manufacturing Co., Ltd., and its subsidiaries include Hafei Aircraft Manufacturing Co., Ltd. and Dongan Engine Co., Ltd. ... On the basis of the original military industry, it began to make civilian products, and established Harbin Automobile Manufacturing Co., Ltd. and dongan power Co., Ltd., mainly engaged in automobiles and micro-engines. Among them, dongan power and Mitsubishi jointly established Dongan Mitsubishi Engine Manufacturing Co., Ltd., which belongs to dongan power. The above companies originally belonged to AVIC Group Co., Ltd. Later, AVIC handed over hafei automobile and dongan power to the Ministry of Ordnance, namely Changan Automobile. So now hafei automobile and dongan power belong to Changan Automobile, so I won't introduce them much, but dongan power's salary is not low. Harbin Airlines and Dong 'an Airlines found that both were good, and the airlines provided better service and similar treatment. It is said that Dong 'an Airlines will hold more meetings. That's all, you're just making a reference, not necessarily accurate.