Gelonghui May 16| Some investors asked Aviation Materials Co., Ltd. that the C919 large aircraft has begun to accelerate mass production. What products the Secretary of the Board of Directors directly and indirectly provides for large aircraft productionunrealengineblockchain？Aviation Materials Co., Ltd. stated on the interactive platform that the company directly or indirectly provided rubber sealing materials and titanium alloy intermediate casings and other products for the project. The company has the ability and confidence to meet large aircraft requirementsunrealengineblockchainMass production needs. Due to the current low production of C919, the sales of the products sold by the company in 2023 directly or indirectly applied to this project will account for a low proportion of overall operating income.