Improved Sejimproved Sej,Improved Sej (Assembly) : Improved Switch Expansion Joint (With80 Mm Max. Gap) For Long Welded Rail B.G. 60 Kg(Uic)/60E1 Rail On Psc Sleepers For Curves ˃ 2 ̚ To 4 ̚ With Com Plete Fittings Excluding Rubber Pads (Drawing And , Improved Sej (Assembly) : Improved Switch Expansion Joint (With80 Mm Max. Gap) For Long Welded Rail B.G. 60 Kg(Uic)/60E1 Rail On Psc Sleepers For Curves ˃ 2 ̚ To 4 ̚ With Com Plete Fittings Excluding Rubber Pads (Drawing And