... samplesRaw material : 65Mn./ 0Si2Mn/Q235/45#Surface :black etc. Commodity:Spring washersType:from 3/4-1Raw material:65Mn, 60SizMn, 70#...Surface ... ,rail bolt,fish bolt,square bolt,special bolt5,nuts and spring washers6.tie plate,base plate,rail plate7.fish plate,rail ... .clamp plate,rail clamp,anchor plate,steel sleepers9.rail pad,plastic dowel,guide plate10.rail anchor,rail shouldershould any of items ...