Supply Of Bellow Duct With Meta Armid Air Canvas Made Up Of Meta Armid/para Armid With M Etallic Frame At Both Ends. As Per Spec No. Rdso/pe/spec/ac/0197-2020rev-0 Or Latest. Consisting Of 01 Number Of Supply Air Bellow, 02 Number Of Return Air Bellow, And 02 Number Of Fresh Air Bellow In Set. 1 Nu Mber 1 Set. Warranty Period: 30 Months After The Date Of Delivery