上大股份(301522.SZ)：参与多型号相关航天发动机等装备所用特种合金产品的试制验证和批产交付工作

Core Viewpoint - The company has established itself as a qualified supplier of high-temperature alloys and other materials for major domestic aerospace enterprises, focusing on critical components for rocket engines and other aerospace applications [1] Group 1: Company Developments - The company has engaged in cooperation with major domestic aerospace firms [1] - It has become a qualified supplier for high-temperature alloys used in solid rocket motor casings, liquid rocket engine hot-end components, and other critical aerospace parts [1] - The company is involved in the trial production and mass delivery of special alloy products for various models of aerospace engines and equipment [1]