... 35 9 Hardness HRR ≥110 118 Rail Plastic Dowel is a counter-party of Screw Spike, which is pre-inserted into the ... . We can also make other rail fastenings such as railway screw, plastic dowel, rail pad, railway insulator, rail fish bolt, railway base ... system of E type/SKL type/KP type/Nabla type. Plastic Dowel,Screw Dowel Pin,Spike ...