... wear-resistance, used for semi-finishing of hard cast iron, steels and so on. Hardness:HRA92.8 Density:14.5~14.8g ... manufacture of tungsten carbide products such as tungsten carbide strips, rods,rings,inserts, shims, wear parts, drawing dies,drilling bits,cold ... wear-resistance, used for semi-finishing of hard cast iron, steels and non-ferrous metal, thereby made into forming cutters, wear-resistant ...