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