Equipment - Cat (a) - Purchase Of 2 Kva (48v Dc) Ups (1 No.) With Exide Tubular Batteries 6el 12v 75ah (4 Nos.) And Replacement Of 2 Kva Ups (48v Dc) With Exide Tubular Batteries 6el 12v 40 Ah (4 Nos.) Under Buy Back, 2 Kva On-line Ups (48v Dc), Fully Tubular 75 Ah 12v 6el Batteries, Suitable For Battery Stand (ms Rack) For Fully Tubular 75 Ah 12v 6el Batteries., Cat (b) - Buy Back Items, Buy-back (ie Minus) - 2 Kva On-line Ups (48 Vdc) (make: Hykon), Buy-back (ie Minus) - Exide Fully Tubular 40 Ah 12v 6el Batteries