... , is the most important production of polyurethane raw materials, a small amount of MDI used in addition ... , wear, oil, flexibility, and so have other synthetic materials incomparable advantages, is the polyethylene, Polyvinyl chloride, polypropylene, ... Material Intermediates Colour: White, Light Yellow, Brown Appearance: Liquid, Crystal Packing: 225-250kg/Barrel Export Markets: North America, South ...