It was learned on July 13th that in the exchange meeting for excellent QC activity achievements of Sichuan engineering construction in 2020 hosted by Sichuan Construction Engineering Quality Safety and Supervision Association, through the preliminary evaluation, live announcement and other fierce competitions, four QC group activity achievements of CC7 stood out from 985 achievements, and respectively won one first prize of the excellent achievements (Improving the first-pass yield of pipeline opening of large fertilizer) , one second prize (Improving the molding quality of box girder circular outer web), and two third prizes (Improving the first-pass yield of MAN900 pipeline welding and improving the first acceptance rate of pile head cutting of concrete precast pile).