... .Walk in freezer; 2.Energy saving design; 3.R404a environment friendly refrigerant; 4.Bitzer or Copeland compressor Our main products are supermarket display freezer ... cooler,open air cooler,,upright coolers,open front cooler,island freezer,wall cases,serve over counters,island cases,multi deck chiller ... , andfull closed or half closed or half closed compressor unit. walk in freezer