Valtasiirto Oy is a provider of products and services such as water supply engineering consultants,offshore petroleum engineering consultants,electric cable laying engineering consultants,semiconductor process technology consultants,lightning protection systems engineering consultants,feasibility studies, engineering products,gas industry engineering consultants,heat transfer engineering consultants,chemical, physical and biological calculation engineering consultants,petrochemical engineering consultants,oil refinery engineering consultants,locomotive rebuilding and reconditioning services,maintenance services, light rail motor tractor,marine electrical installation consultants,agricultural buildings, metal,locomotives, diesel-electric,locomotives, diesel-hydraulic,locomotives, diesel-mechanical,locomotives, diesel, flameproof,locomotives, electric,locomotives, electric, battery,locomotives, electric, flameproof battery,locomotives, steam, fireless,locomotives, steam, liquid fuel,locomotives, steam, solid fuel,locomotives, gas turbine,locomotives, standard gauge,locomotives, rack railway,locomotives, narrow gauge (light railway),railbuses,trains for city services,trainsets, underground railway,trainsets, overground railway,trainsets/multiple unit railcars, electric,trainsets/multiple unit railcars, diesel mechanical,trains, personnel carrying, for mines,locomotives, shunting, switching,locomotives, passenger,locomotives, freight,locomotives, mixed traffic,locomotives, mining,locomotives, miniature,trolleys, rail motor gang,rail motor vehicles, inspection trolleys,rolling stock breakers,railcars, diesel-electric,railcars, diesel-mechanical,railcars, electric,trams,railcars, diesel-hydraulic.