... quick delivery time4.sound after-sell service diamond and cbn grinding wheels used to grind high speed ... tool & die steels, alloy steels, Aerospace alloys and hard stainless steels We have the 1A1,12A2,6A2 ... 14A1,14E1 and so on, special sizes can be customized When combined with CBN, resin bonds can be ... used for grinding high-speed steels, tool and die steels and super alloys with ...