Metalúrgica Riosulense S.A. engages in the manufacture and sale of high-precision parts and accessories for automotive and related vehicles in Brazil. It offers guides, seats, mechanical valve tappets, cylinder liners, special alloy castings, reamers, piston rings, cylinder liners, valve guides, injector nozzle sleeves, valve springs and seats, engine valves, valve and hydraulic tappets, and camshafts, as well as rings/bushings/spacers, rockers, and combustion pre-chamber components. The company also provides fan starters, adapters, thermostat and flywheel housings, exhaust collectors, valve guides and seats, sumps, connections, exhaust elbows, wheel hubs, suspension stands, shims, engine tops, support plates, and shoulders, as well as support plates, hanging brackets, and locomotive traction motor cover assemblies. It offers its products for applications in light vehicles, utility vehicles, motorcycles, trucks, agricultural machinery, and rail and ship transport. The company exports its products to 25 countries in Latin America, North America, Asia, Europe, and Oceania. Metalúrgica Riosulense S.A. was founded in 1946 and is based in Rio do Sul, Brazil. Metalúrgica Riosulense S.A. is a subsidiary of Stramosk Participações S.A.