... operation Characteristics: 1, Euro-style rectangle barrel with reflux refrigeration channel2, Various modes of pelletizing ,such as water-cooling ... strand ,air-cooling,water-ring pelletizing3, Screw elements and kneading blocks are made of 38CrMoALA or ... .4,Feeding styles are of varieties: single screw, twin screw ,hollow screw, forced-feeding,side-feeding,liquid-adding system5,PLC ...