Detailed Product Description SJ-A50,55,60,65 High Speed Blowing Film MachineUse characteristicsThe unit extruder, barrel, screw adopt high-quality ... designed screw high yield, good plastics. Applicable to the blowing high and low -density polyethylene (HDPE,LDPE) ,linear ... low density polyethylene (LLDPE), such as plastic film, widely used in food, clothing, garbage bags, vests bags, ...