tender for conditioned air duct assembly suitable for sidwal make roof mounted acpackage unit made up of two layers of fire retardant cotton canvas suitablystitched conforming to rdso specification no. rdso/pe/spec/ac/0136 -2009 rev.0. alongwith stainless steel frame as per delux shop drg. no. dlx/ac/01/04 rev.1.testcertificate for canvas is to be produced. cotton canvas shall be procured fromrdso approved sources.only.
