Plastic-steel packing belt is thick and hard. What material is it called?

the plastic-steel packing belt is thick and hard, which is called PET plastic-steel packing belt. According to the relevant public information, PET packaging tape, also known as PET plastic-steel packaging (plastic-steel packaging tape), is a polyester packaging tape formed by extrusion and unidirectional stretching with PET as the main raw material. PET packaging tape is a new type of environmental protection packaging material that replaces steel tape, steel wire and heavy-duty PP packaging tape in the world.