Oxygen cylinders are high-pressure containers for storing and transporting oxygen. They are generally made of alloy structural steel by hot punching and pressing, and are cylindrical. Used in hospitals, first aid stations, and nursing homes. Oxygen cylinders are ideal oxygen supply equipment for hospitals, first aid stations, nursing homes, home care, battlefield rescue, personal health care, and supplementary oxygen in various hypoxic environments. It is an indispensable friend for patients, elderly, pregnant women, students, white-collar workers, tourists, tunnels, and mountain climbers.