Submicron cemented carbide.For drawing of steel. Bars and pipes at high reduction, and also for upsetting, perforating and stamping tools under higher-stress conditions.

• 超细晶粒硬质合金。适于高压缩率下钢棒和钢管拉伸,在较大应力下工作的顶锻、穿孔及冲压工具。