Polyester spiral dry fabrics is suitable for the dry part of paper machine, printing and dyeing machine, also for other special industry fabrics. Advantages of polyester spiral belt : Flat surface, not easily cracked Good air permeability Stable property against heat and moisture Low thermal shrinking Less elongation at heat Long lifespan. Major use of polyester spiral belt: Producing of paper, corrugated paper, paper for train fare.Filtration and separation of air, liquid and solid in various fields. Wooden case or foam plastic bag.