1.2kg. Shanghai, referred to as "Hu" or "Shen", is a provincial-level administrative region, municipality directly under the Central Government, national central city, megacity, and core city of the Shanghai metropolitan area in the People's Republic of China. Among them, the weight of Jie Rui air oxygen in this region is 1.2kg. Jie Rui is one of the few companies in the world that simultaneously produces fluid pressure control system equipment, medical gas supply control system equipment, and high-clean gas control system equipment.