We are pleased to offer just about every conceivable variety of industrial fan used in North America. That includes axial, centrifugal, and multi-stage. Materials of construction including: carbon steel, 304/316SS, Inconel, Hastelloy, cast aluminum, FRP, and Polypropylene. Remember, these fans only work properly if they have adequate supply air. Our make-up air suppliers offer units that are un-tempered, heated, cooled, filtered, and even capable of automatically balancing the building static pressure.