Group 1 - The event showcased items similar to those used in the military parade, including observation chairs, gift bags, and performance costumes, attracting significant attention from attendees [2] - The "Beijing Gifts" exhibition area featured a specially designed gift bag made from custom nylon material, incorporating innovative eco-friendly composite technology and 3D cutting techniques, symbolizing "Peace 80" [2] - The traditional "Laozhao" sour plum soup was introduced as an electrolyte drink at the event, drawing long lines of attendees eager to taste the new product [2] Group 2 - A total of 1,508 red observation chairs, reminiscent of those used during the military parade, were allocated to the event and have been utilized for service support [3]