Profile: Greystone Mfg., LLC produces plastic pallets. We serve food and beverage, automotive, chemical and pharmaceutical & consumer product industries. Our brands include Greystone Manufacturing LLC™. We focus on injection molding equipment, proprietary blend of recycled petrochemical resins and patented pallet designs. Our Greystone 48x40 pallet specifications includes fiberglass rods, full picture frame and patented hidden interlocking design.