... uses LDPE, LLDPE granule material to produce air bubble film, which widely used as post parcel packing, precise instruments ... extruder, air bubble forming device, perforation device, edge trimmed film collecting device, cutting device, winding device, cabinet control system. ... Main Technical Parameter Model JDFPE-1500 JDFPE-2000 JDFPE-2500 JDFPE-3000 Main screw diaφ80mm ...