construction of chemical store cum complaint room at deothi in gp deothi tehsil rampur distt shimla (hp-steel work in built up tubular ( round, square or rectangular hollow tubes etc.) trusses etc. including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer including welding and bolted with special shaped washers etc. completein all respect with in all leads & lifts and as per the direction & to the entire satisfaction of the engineer-in-charge. (hot finished welded type tubes.) 2 providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm ( + 0.05%) total coated thickness , zinc coated 120 grams per sqm as per is: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyster top coat 1518 microns using self drilling / self tapping screws complete in all respect with in all leads & lifts and as per the direction & to the entire satisfaction of the engineer-in-charge 3 gutter (600 mm over all girth) 4 barge board ( upto 300 mm ) 5 providing and fixing insulating board ceiling of approved quality with necessary nails etc. complete in all respect with in all leads & lifts and as per the direction & to the entire satisfaction of the engineer-in-charge. ( frame work to be paid separately) 6 flame retardant face insulating board 12 mm thick