... packing. SJ-A50,55,60,65 High Speed Blowing Film MachineUse characteristicsThe unit extruder, barrel, screw adopt high-quality steel, nitride tight handling ... to the blowing high and low -density polyethylene (HDPE,LDPE) ,linear low density polyethylene (LLDPE), such as plastic film, widely used in ... *2.5*5.5m5.8*2.8*6.5m HDPE High speed Film Blowing Machine