... Rail Clamp/ Clamp Plate; 5) Railway Cast Shoulder; 6) Track Spike, Screw Spikes, Bolts and Nuts, Washers ... Raw Material: Q235, 35#, 45#, 40Mn2, 20MnsiGrade: 4.6, 5.6, 8.8Surface: Plain (oil), black, zinc, hdg, ... 40Mn2, 20Mnsi, 35CrMo, 40Cr, 42CrMo...Grade: 4.6, 4.8, 5.6, 8.8, 10.9, 12.9Surface: Plain ... (oil), black, zinc, hdg, etc. 6. Tie Plate /Base Plate /Bearing Plate/Rail Plate/Rail ...