supply of bellow ducts set-01 set consisting of 01 no.of supply air bellow, 02 nos of fresh air bellows and 02 nos of return air bellow ducts made of meta aramid / para aramid fabric with silicone rubber coating on both sides as per rdso spec no. rdso / pe / spec / ac / 0197-2020 ( rev-0 ) and drawing no. icf / sk3-7-6-072. [ warranty period: 60 months after the date of delivery ] , supply of bellow ducts set-01 set consisting of 01 no.of supply air bellow, 02 nos of fresh air bellows and 02 nos of return air bellow ducts made of meta aramid / para aramid fabric with silicone rubber coating on both sides as per rdso spec no. rdso / pe / spec / ac / 0197-2020 ( rev-0 ) and drawing no.wr-cwm / pl-sketch-014, alt-1. [ warranty period: 60 months after the date of delivery ] , supply of bellow ducts set-01 set consisting of 01 no.of supply air bellow, 02 nos of fresh air bellows and 02 nos of return air bellow ducts made of meta aramid / para aramid fabric with silicone rubber coating on both sides as per rdso spec no. rdso / pe / spec / ac / 0197-2020 ( rev-0 ) and drawing no.wr-cwm / pl-sketch-015, alt-1. [ warranty period: 60 months after the date of delivery ] , supply of bellow ducts set-01 set consisting of 01 no. of supply air bellow, 02 nos of fresh air bellows and 02 nos of return air bellow ducts made of meta aramid / para aramid fabric with silicone rubber coating on both sides as per rdso spec no. rdso / pe / spec / ac / 0197-2020 ( rev-0 ) and drawing no.wr-cwm / pl-sketch-016, alt-1. [ warranty period: 60 months after the date of delivery ]