1. pre-cooling system 2. fast cooling , stainless steel panel 3. ASPERA or Hitachi compressor 4. R404ga Detailed Product Description ice cream maker 1. pre-cooling system 2. fast cooling , stainless steel panel 3. ASPERA or Hitachi compressor 4. R404ga desktop ice cream maker BQL-818TFeature 1) use artificial refrigeration control 2) automatic clearing system 3) Standby time for 3-9 minutes ...