... extruded or pressed; 4. 310mm~330mm, usualy; 5. tungsten carbide material Long life,Good Wear Resistance,Excellent toughness,any grade ... are available We specialize in the manufacture of tungsten carbide products such as tungsten carbide strips, rods,rings,inserts, shims,, wear parts ... tons . The carbide powders are WC, TiC, Cr3C2, VC, TaC, NbC, BC4, etc GradeCompositionGrain Size(um)Density(g/cm3) ...