Capacity: 1T to 20TPD Refrigerant:R717 Ammonia Food-grade PLC automatically controlled Ammonia R717 Tubular Ice Evaporator,Tube Ice Generator Introduction:Tube Ice or tubular ice is a tube-shapde ice with hole inside, the standard diameters are 25,30,35,40. special dimenisions are welcome. Tube ice is usually used for human consumption, adding into beverage, liquor, etc.It should be food grade, ...