PVC heat shrinkable film, good transparency, can be printed, can produce different sizes and a variety of tubular, sheet, folded membrane; To facilitate processing into various shapes; Low shrinkage temperature, 65 ℃; Contraction ratio, transverse: 45% or higher, the longitudinal 0 ~ 25%, the thickness of 0.015-0.08 mm; Flexibility is poor, not suitable for heavy packaging.

POF heat shrinkable film, good transparency, flexibility is good, biodegradable; Initial shrinkage temperature 100-150 ℃, shrinkage ratio, lateral were greater than 50%, the thickness of 0.012 to 0.04, unfavorable packing weight and long-term preservation.

PE heat shrinkable film: good flexibility, big tension, opaque, suitable for group packaging, packing weight; Initial shrinkage temperature to 180 ℃, 0% ~ 50% contraction than transverse, longitudinal 50% ~ 85%, the thickness of 0.03 ~ 0.15 MM. Unfavorable packaging items not high temperature resistant.