... Shrinkage:TD45-50%; MD25-35% 4.Good Heat Sealing Heat Shrink Bag also known as: Super Shrink bags ... bags, promotional bags, multipack bags, supershrink bags,Heat Shrink Wrap Bags,Domed PVC Shrink Bag,PVC Shrink ... Bag,PVC Heat Shrink Bag:Shape:Square,Cambered,Trapeziform, Thickness ... , then seal the open end. Bags are heat shrinkable to 40% and designed for quick-shrink micro ...