Machine: Contour-BB Cylinder Head: demo application: the valve seat - booster seat beryllium copper Valve Seat Diameter: 1496 "(38.00 mm), cutting cycle time: 0 beryllium copper, minutes 43.0 seconds (https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgH5cv4B7y4IH3GmL8GeolHnVIxr7cNsazySuQzPgZFQrDa4_2OEuF2XMP6JQs0tPXC8HIbmqA3MuIlaIB1GlAsSanjL5OVWctDRFINofIdSyEgGSrB-Zts08Avk0A7kG4RuVLPvRrIoGFA/s72/Child_beryllium_copper.jpg)