... ,SBR,NBR 2)Application:subway,rail track 3)Different size 4)Good quality,price Rubber Rail Pad1.Material:EPDM,NR,SBR, ... NBR.2.Application:Mainly used in rail tracks ... .3.Colour:Black.4.Excellent chemical and physical property.Good aging ... .6.Perfect shock absorbtion and cushion. Rubber Rail Pad