Core Viewpoint - The company, Su Shi Testing (300416.SZ), has been providing comprehensive testing services for various sectors, including aerospace, for many years [1] Group 1: Business Overview - The company offers a range of testing equipment and services, including thermal vacuum, mechanics, climate, and comprehensive environmental testing [1] - It provides one-stop comprehensive testing services such as aerospace environment testing, material testing, structural strength testing, electromagnetic compatibility testing, integrated circuit verification analysis, software evaluation, and non-standard testing services [1]