... Main High speed steel products: M2, M7, M35, M42, M2Al, W9, W18. Main Tool steel products: D2,H21,H13,H3,H4, ... Main High speed steel products: M2, M7, M35, M42, M2Al, W9, W18. Main Tool steel products: D2,H21,H13,H3,H4 ... to cooperating with friends from all over the word in HSS industry. HSS Product list:TypesHeye GradesContrast GradesGB9943AISIDINJISERASTEELBOHLERGeneral PurposeHYM2-1W6Mo5Cr4V2M2S 6-5 ...