... are the biggest manufacture for carbide nail a good wear resistance and good RS value ... sizes and different shapes of tungsten carbide pins, studs, nails for the tyre stud, spike, shoes, horses, buses, trucks, ... etc. All of our materials for the carbide pins are made by our own Carbide Powder ... 2 Φ2.4/Φ2.08*5.8 Carbide studbodies for the tyre stud, spike, shoes, horses, buses, trucks ...