42 Consulting services in the field of industrial engineering; custom design, engineering and testing of foundry products; research and development of new products for use in the specialty chemical, metallurgical, steel and metal-casting industries; engineering services in the fields of metallurgy, steel and metal-casting; scientific and technological services, namely, testing, analysis and evaluation in the field of metals, products casted therefrom and metallurgical additives for use in steelmaking and metal-casting; research and development in the fields of metallurgy; scientific research consulting in the field of metallurgy; consulting in the field of engineering