Maneurop Compressor is closed ,piston compressor use R407C,R134a,R404A and R507 refrigerant Maneurop Compressor is closed ,piston compressor evaporator temperature from -45degree Celsius to 20 degree Celsius,according to the different high school for low evaporation temperature of occasions ,the existing models of MT,MTZ,NTZ,MPZ,MT compressor designed to use conventional refrigerant R22, the ...