... .Bitzer or Hanbell screw compressor; 2.Doulbe compressor in screw chiller; 3.R22 or R407 refrigera Doulbe Compressor Air Cooled Screw Chiller from ... , and other industrial field : electroplating (surface treatment), medicine, chemical, hydraulic system, leaser, shoe-making, electronic, print, etcII.Quality in each partsCNCEN ...