... PR401, PR309...Raw Material: 60Si2MnA, 60Si2CrASurface: Plain (oil), black paint, colour paint, zinc, dacromet, hdg, etc. 2. Rail ... , SKL12, SKL14Raw Material: 38Si7, 60Si2CrASurface: Plain (oil), black paint, colour paint, zinc, dacromet, hdg, etc. 3. Screw Spike ... samplesRaw Material: 60Si2Mn, 65Mn, 45#, 70#, Q235Surface: Black, colour oiling 13. Rail AnchorType: 50kg, 90LBRaw Material: 60Si2MnASurface: ...