... machine uses LDPE, LLDPE granule material to produce air bubble film, which widely used as post parcel packing, precise instruments ... Feature:This machine is composed of extruder, air bubble forming device, perforation device, edge trimmed film collecting device, cutting device, winding device ... 1Power supply380/3/4/50(Volt/Ph/Line/Hz) Best Price The Compound Polyethylene Bubble Film Making Machine