Where to make a flight training simulator in China?

At present, there are three domestic companies that make flight training simulators, namely Chengdu Simak Virtual Reality Electronic Technology Co., Ltd., Beijing Blue Sky Aviation Technology Co., Ltd. and Tianjin Huayi Blue Sky Technology Co., Ltd., among which Beijing Blue Sky is a subsidiary of state-owned enterprises, Simak is a private enterprise, and Tianjin Huayi Blue Sky mainly cooperates with Airbus because Airbus has an A320 assembly line in Tianjin.