many of the company’s personnel have been hired as “members of the national technical committee for nondestructive testing standardization”, “members of the nondestructive testing branch of the national steel standardization committee”, “members of the technical committee of the national welding standardization committee”, and “members of the national standardization committee for nondestructive testing instruments standardization committee”. member”, “member of china materials and experimental standards committee”, “member of ultrasound professional committee of china society for non-destructive testing”, “member of non-destructive testing branch of chinese society of metals”, “china composite materials society”, “member of the expert database of shanghai science and technology commission” “, “shanghai leading talent”, “visiting professor of nanchang hangkong university”, “part-time professor of hangzhou university of electronic science and technology”, etc.