... firm and wearable.non-cast can compare with the machin Characteristics:Model A and C with four rows of knives and Water cooling ... , piping material, machine crust,plastic,last,etc..Model A and C more suit comminuting PVC,TPR,TPE,PP,PE,etc., Soft ... can continuoustask for twenty-four hours. Model B and D with two rows of knives design,easily cleaning outmaterials, powerful comminuting ...