The valve seats are made from single cluster castings and centrifuged cast iron castings which guarantee the absolute health of the finished parts.

The wide range of materials ( G8O , with 12% chromium ideal for highly stressed engines and for use with unleaded petrol, G90 austenitic cast iron, with the linear thermal expansion coefficient very similar to that of aluminum and therefore optimal for use in industrial engines the G33 , containing 33% chromium and ideal for engines with high thermal stress such as i turbo diesel) has always allowed us to satisfy any customer need.

The range of materials together with the great precision of automatic machinery and modern control equipment has allowed OFFs. MECC. BUSSO to become one of the largest suppliers of valve seats for the first European plant.