tender for special repair to bldg no a-29 (medical store) of 417 fd hosp at rhenock under ge 867 ews-- 1 dismantling of plain or corrugated steel sheeting, any gauge, thickness including nainital pattern roof covering all as specified and directed. 2 s&f pre- painted galvatume aluminium zinc coating gi based corrugated steel sheet 0.50mm thick of any colour having tensile strength of 550 mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and as directed. 3 s&f pre- painted galvalume aluminium zinc coating gi based plain steel sheet 0.50mm thick of any colour having tensile strength of 550 mpa as in roof covering/cladding to wall, fixed with seif tapping screws complete all as specified and as directed. 4 dismantling of wall and ceiling boards( fiber pulp insulation etc) or insulation boards/slabs/blankets any thickness including cover fillets all as specified. 5 s&f gi frame work of size 605 x 605mm, for seamless celing comprising of gi perimeter chanel 0.55mm thick with two unequal flangesof 20 and 30mm and web of 27mm fixed to surrounding wall using nylon sleeves and screws at 450mm centre to centre/ intermediate channel 0.9mm thick having two equal flanges of 15mm each and web of 45mm suspended from soffit at approx 900mm centre to centre with gi cleat and steel expansion fasteners with and incl ceiling section (not exc 1.2m length) of 0.55mm thickness having kurled web of 50mm and flange of 26mm each with lips of 10.5mm fixed to the intermediate channel with connecting clips across the intermediate channel at 457mm centre to centre.