EXPANDED SLAG AGGREGATES FOR USE IN FABRICATING STRUCTURAL CONCRETE AND CONCRETE MASONRY UNITS

construction and repair, namely renovation, repair and maintenance of metallurgical vessels, industrial boilers and nuclear plants; cleaning and reconditioning of metallurgical equipment, namely industrial boilers, pipework, ladles, tundishes, molds, furnaces and runners, buildings, roads, gantries, walkways and runways; cleaning and decontamination of nuclear plants and parts thereof; installation of industrial equipment, construction and maintenance of industrial buildings, namely painting,...

engineering and consulting services in the metallurgical, nuclear, chemical and mechanical engineering industries and analyses and testing of materials related to metal reclamation recovery

material treatment, namely, treatment of waste material and handling and treatment of slag, scrap, coke and nuclear fuels; reclamation of solids from aqueous media; purification of water; water proofing and sealing of buildings; heat treatment of products made of metal and alloys; reprocessing of nuclear fuels; purification and extraction of minerals by chemical and magnetic methods; surface finishing articles of common metal; electroplating; grinding; and welding