... according to different requirment 3. can be fixed or hung on the wall with expanding screws, very easy installation . 4.The ... large enough for installing many kinds of equipment.such as, gas outlets reading light,power socket and switch, telephone or network ... easy to cleanStructureSeparate the electric with the gas outlets.Safe and reliableGas outletsInclude medical gas O2,Vacuum,N2O,CO2,AGSS,etc. ...