DISCUS Engineered Products™ manufactures and installs the revolutionary OpenRaft™ Aluminum Internal Floating Cover, an innovative perimeter seal system, and improved appurtenance technology for use in petrochemical storage tanks. The revolutionary welded OpenRaft™ cover, designed to steel specs, has no enclosed spaces, making it the safest, strongest, and lowest emissions AIFC available. It is offered fully welded (zero seam loss) or bolted (lowest bolted seam factor available). With 74 years of collective petrochemical industry experience, the DISCUS Engineered Products management team combines industry expertise with exceptional customer service. Trust Your Inner Roof. http://discusengineeredproducts.com/