Tenders for Supply of Labyrinth Ring For Nose Suspend Drive Msu Tube Of Wap-7/Wag-9 Locos As Per Clw Drg.No.1209-01.211-028 Alt.1 Abb Id Ib016-00423 Rev-3.. Labyrinth Ring For Nose Suspend Drive Msu Tube Of Wap-7/Wag-9 Locos As Per Clw Drg.N O.1209-01.211-028 Alt.1 Abb Id Ib016-00423 Rev-3. Warranty Period: 30 Months After The Date Of Delivery