GIEFFE (a Martek S.r.l. company) is one of the world’s leading companies specialised in the production of a wide range of valves, valve seats and valve guides for endothermic engines.

The GIEFFE ranges cover the main European, US and Japanese models for the car, commercial, industrial and agricultural vehicle sectors as well as the earth-moving machinery sector. We cater for the needs of the aftermarket and the original equipment market.