Cui Shuai, the head of 509 fitter group of the Fifth Branch of Shanxi Aerospace Tsinghua Equipment Co., Ltd., is mainly engaged in the general assembly of national key model products. He has rich experience in large-scale non-ferrous metal cylinder structure, cylinder rounding, welding deformation control of ear ring reinforcement, cylinder polyurethane foam foaming, cylinder assembly assembly, cylinder product development and testing@ Shanxi Provincial Federation of Trade Unions