... 3, reasonable price 4, strong production line Tungsten Carbide pinswe are the biggest manufacture for carbide nail a good wear resistance and ... . We produce different sizes and different shapes of tungsten carbide pins, studs, nails for the tire stud, spike, shoes, horses, buses, trucks ... : Φ2.3*5.2 Φ2.4/Φ2.08*5.8 Tungsten Carbide pins for tiers, spike, shoes, horses, buses, trucks