... more stable, highe cooling speed, long time to use 5. High quality and environmental friendly motor beater, more stable, longe time to ... Refrigerant used international recycle R404a7. Cooling method: water-cooling or air-cooling 8. When working could do feeding according to customers ... reference (Remarks: cooling method: KS-80,KS-120 is air-cooling/water-cooling, and the other models is water-cooling ...