Seat belts made of polyester are a novel solution to this problem. They are made of polyester, but RHI has replaced 95 percent of the nylon rein them, resulting in a comfortable seat with high workplace safety. Document page views are updated periodically throughout the day and are cumulative counts http://www.drugoffice.gov.hk/gb/unigb/www.ledteks.com/seatbelt-and-safety-belt-webbing