Tenders for Supply of Flap Door Arrangement Boxnhl Reduced Height As Per Rdso Drawing No: Wd-23018-S-02, It Em No: 3, 4, 5A, 5B, 5C, 10, 12, 13, 14, 16 In Assembled Condition. Material And Specification As Per Drawing. Warrant Y Period: 30 Months After The Date Of Delivery