1.bed head unit for hospital 2.can fix with gas pipeline,gas outlet socket 3.with reading lamp,or up lamp if ... . our regular length is 1.2m.2.supply gas outlet socket fixed on. EU standar,BS standar,Metric Standar. and different ... .For gas: O2, vacuum,compressed air,N2o,Co2,etc.3.socket. EU,BS,ETC.4.Lamp. reading lamp,up lamp. Wattage ... HEAD USED IN HOSPITAL. AND THE CEILING RAIL. bed head unit