(b) The sales and use tax does not apply to a sale of:
(1) tangible personal property, a digital code, or a digital product used directly and predominantly in a production activity at any stage of operation on the production activity site from the handling of raw material or components to the movement of the finished product, if the tangible personal property, digital code, or digital product is not installed so that it becomes real property;
(2) a melting, smelting, heating, or annealing coke oven, aluminum furnace, anode bake oven, electrolytic pot, cathode, refractory, or other material used in relining and rebuilding a furnace or oven; or
(3) a foundation to support other machinery or equipment or an item required to conform to an air or water pollution law and normally considered part of real property.