tender for supply, fixing, repair, replacement of chs; 1. pre-painted galvalume sheets of camouflage pattern of size 3200 * 800 * 0.5 mm thickness. make:-tatabhushan 2. pre-painted galvalume sheets of camouflage pattern of size 3000 underline * 800 * 0.5 mm thickness. make:- tata/jindal/bhushan 3. 8 mm j hook 4. purlin of size 40 * 40 * 5 mm thickness duly painted with two coats of synthetic enamel paint(og colour) over one coat of red oxide primer. 5. prefab mild steel of size 610x1700 mm. outer frame made out of isa 40 * 40 * 6 mm and door shutter frame of isa 35 * 35 * 5 mm and all stiffener isa 30 * 30 * 3 mm, welded with 100 mm thick ms butt hinges, one no ms sliding bolt size 250 mm, one no 200 mm long ms tower bolt and two nos 200 mm ms handles. make: m/s ajanta ispat pvt (ltd). siliguri, m/s ava steel industries, m/s ankur industries, isi mark. 6 elect wiring as reqd for smooth functioning of central heating system