... quality. ○ Centralized Oxygen Supply Equipped with single or double 10L aluminum cylinders, gas pipeline, rapidly pluggable terminal and ... in ambulance. ○ Vehicle-mounted Equipped with single 4L aluminum cylinder or single/double 10L aluminum cylinders, valve, respirator, fixed support ... , relieve valve, humidifier, oxygen tube, respirator and aluminum alloy box or small cart. The advantages are easy ...