7
Agricultural machinery, namely combines, harvesters, threshers, tillers, windrowers, seed planting machines; metal working equipment, namely, power operated saws and drill presses; power saws; power drills; drilling machines; power tapping machines; power sanders; power tool routers; power tool jointers; electric planers; lathes; power tool waxers; power tool buffers; power tool grinders; milling machines; belt and disc finishing machines; surface grinding machines; and, replacement parts and fittings therefore
37
Mining extraction; metal drilling and perforation; repair and maintenance of mining machines and apparatus
40
Custom processing of petroleum products and chemicals; petroleum refining; fuel and oil refining; treatment of metal, metal casting, material casting, namely obtaining metals from nature Earth materials
42
Mining and mineral exploration services; professional consulting services and advice about agricultural chemistry; geophysical exploration for the oil, gas and mining industries; Professional and technical consultancy, analysis, and technical project studies relating to the oil industry, and to the technical issues related to the sale and distribution of petroleum products and chemicals and derivatives thereof; engineering and surveying; petroleum, gas and electricity exploration services; petroleum, geological, geophysical and geochemical research and oil prospecting, namely well logging and testing; conducting oil-field and mineral deposit studies and surveys; conducting laboratory analyses relating to petroleum, geological, geophysical and geochemical research and oil prospecting; research and development of new processes for others