Double Sealed Window Unit With Polycarbonate Sheet And Frosted Glass (For Rtdc Coaches) To Size: 60 0X980X25.5 Mm. To Drg. No. Wrctac 1-5-4-004 Alt. "C", Col. Ii With Sealing Rubber To Drg. No. Wrctac 1-5-4-006 Alt . "A". [ Warranty Period: 30 Months After The Date Of Delivery ] ]