... standard. Each medical gas outlet we supply has passed air tightness test. Designed with valve for the convenience of maintenance ... (Automatic / Manual for O2, N2O, CO2, Air, etc.;)Medical Compressed Air SystemMedical Vacuum Pumps System2, Medical Gas Control Equipments, ... Scrub Sink Stations;3, Hermetic Doors (Automatic / Manual Mode Sliding / Swing Doors);4, PVC Handrails, PVC Wall Guards, PVC ...