Supply Of Air Bellow Duct Set, Each Set Of Air Bellow Ducts Consisting Of : 01 No Of Supply Air Bellow Duct, 02 Nos. Of Fresh Air Bellow Ducts & 2 Nos Return Air Bellow Ducts .The Bellow Ducts Should Be Made Of Meta Aramid/Para Aramid Fabric With Silicon Rubber Coating On Both Sides And The Metallic Frames At Both Ends Of The Ducts I.E. Rmpu Side & Coach Shell Side, Shall Be As Per Rdso Specification No. Rdso/ Pe/Spec/Ac/0197-2020 (Rev.-1) & Rdso Drawing No. Rdso/Pe/Sk/Ac/0069-2004 (Rev.3), Suitable For Use I N Lhb Type Ac Rmpu Coahes. [ Warranty Period: 60 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]