... biggest manufacture for carbide nail a good wear resistance and good RS value. We produce different sizes and different shapes of tungsten carbide ... pins, studs, nails for the tyre stud, spike, shoes, horses, buses, trucks, etc. ... Φ2.3*5.2 Φ2.4/Φ2.08*5.8 Carbide studbodies for the tyre stud, spike, shoes, horses, buses, trucks, etc.