Graco Hong Kong Ltd. Supplies Low-emission Resin System for the Composites Industry. Graco Hong Kong Ltd. Offers fluid handling systems and components. Low-emission Resin System for the Composites Industry is designed to accurately meter and chop fiberglass into a resin spray to provide structural strength to the end product. Low-emission Resin System for the Composites Industry allow for infinite adjustment of the catalyst ratio - no tools required.