Polyester strap (PET strap) is recognized as a new environmental-protection packing material to substitute steel strap. It can save about 50% cost comparing steel strap. PET straps have been used in various industries like Aluminum ingot, Glass, Ceramic, Ply wood, Construction material like stone, marble and brick, Paper, Cotton baling, Fiber baling, Clothes bailing, Steel plate, Steel pipe etc.