Strength: The primary function of the webbing is to restrain occupants during a sudden deceleration or impact. The tensile strength of the polyester fibers is a crucial factor, as it determines the webbing's ability to withstand the extreme force without breaking. Document page views are updated periodically throughout the day http://www.drugoffice.gov.hk/gb/unigb/www.ledteks.com/seatbelt-and-safety-belt-webbing