... :Volume (liters)Level pressure(MPa)Standards(mm)Length*diameter*thicknessapplicationremarks4003600*1800*6R-134a,R22,R12,etc.Refrigerant cylinders3MPa pressure level for ... the export-oriented600*1800*8R-134a,R22,R12,Cl2NH3,SO2HF etc 4600*1800*10R32,and other pressure level for ... weight of filling, for trace file of the working life. 6.It is forbid to put the oil,cotton and other ...