All phases of construction including highway and bridge construction, culvert installation, excavation, concrete and concrete structures, asphalt, metal buildings, demolition, painting, flooring, electrical, plumbing, remodeling, grading and clearing, fencing.

Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum), Other Nonferrous Foundries (except Die-Casting), Industrial Valve Manufacturing, Ball and Roller Bearing Manufacturing, Industrial Pattern Manufacturing