Machine: Contour-BB Cylinder Head: Demonstration Application: Valve Seat - Classic beryllium copper, beryllium copper Valve Seat Diameter: 1496 "(38.00 mm), cutting cycle time: 0 minutes 41.2 seconds (https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRHdaxqb8CRG5GrqFG3Kbp2ITPHvEvVPvuKVKiB_XtQGjia1K0WEnj2z4Vj98CtkCsdtMUgMarj1hHCnw2CuWoF2zlnxAgwOeFDaTb_VnADNapm6fvc14cVLIIBst5oGzp5INVyoY24hU0/s72/Classic_beryllium_copper.jpg)