... largest high speed tool steel producer and leader of the Chinese Special Steel Association, with ... tool steel, PM high speed steel, high alloy tool steel, and other alloy steel. Main High speed steel products: M2, M7, M35, M42, M2Al, W9, W18. Main Tool steel ... over the word in High speed tool steel industry.Tool steel product list:typesHeye gradeContrast gradeGB1299AISIDINJISBOHLEROther contrast ...