Set Of Double Sealed Window Unit For Mr-300 Series Ac Rakes Of Kolkata Me Tro. One Set Consists Of : (I) Double Sealed Window Unit (Big) As Per Icf Drawing No. Wrc Tac1-5-4-003, Col- I, Item No. 1, 2, 3 (In Assembled Condition) Alt- D Or Latest, If Any- 2 No. / Set. (Ii) Double Sealed Window Unit (Small) As Per Icf Drawing No. Wrctac1-5-4-003, Col- Ii , Item No. 7, 8, 9 (In Assembled Condition) Alt- D Or Latest, If Any- 1No. /Set. [ Warranty Peri Od: 30 Months After The Date Of Delivery ] ]