... ,M35,M42,W9 We are China's largest high speed tool steel producer and leader of the Chinese Special Steel Association ... steel products: M2, M7, M35, M42, M2Al, W9, W18. Main Tool steel products: D2,H21,H13,H3,H4,H5,C1,LD ... friends from all over the word in High speed tool steel industry.Tool steel product list:typesHeye gradeContrast gradeGB1299AISIDINJISBOHLEROther contrast gradeCold-work die ...