HIT offered two key technical help to fly C919
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At 2 PM on 5^th, the first domestic large aircraft C919 hop off successfully from Shanghai Pudong International Airport No.4 runway. The reporter learned from the HIT that the COMAC has cooperated with HIT for a long time, and has played a crucial role during the course of the development, including design technique development of C919 aircraft central wings composite beam back rest large opening reinforcement technology research, and C919 aircraft aluminum alloy fuselage laser bonding technique and equipment development.

Author： 　　　Source：dbw.cn　　　 Editor：Yang Fan