Using stretch film and composite paper to pack PET strap belt bobbins by wrapping through the core of the bobbin. Two different materials wrapping at the same time. Composite paper for reinforced wrapping instead of Covering the corrugated paper shield to the bobbin. The stretch film is to make the airtight wound package to the PET strap belt bobbin. PET strap belt bobbin packaging machine/ Coil wrapper/ roll wrapping machine.