Our standard five-layer co-extruded polyolefin standard heat shrinkable film has high transparency, light weight, economical and practical, the barrier is superior to the three-tier heat shrinkable film; in the process of two-way shrinkage, toughness, strong, shrinkage stability, Balanced; After the completion of sealing a solid packaging, small corner and soft, cold and not easily brittle, non-toxic and tasteless, PVC heat shrinkable film is the best alternative. To prevent the appearance of the product by the impact of dust and odor, moisture, the effective protection of the packaging items.