tender for provision of false ceiling at building p-117 at niat - material and labour charges for false ceiling with anodised aluminium snap grip on framework of angle iron 25x25x2 mm, main tee of size 38x25x2 mm and cross tee of size 25x25x2 mm supported with 6 mm galvanised iron hangers up to 2000 mm length fixed to roof by means of ceiling cleats 40x40x3 mm size 60 mm long and expansion hold fasteners 12.5 mm dia 40 mm long, the ceiling tiles of size 605x605 mm thickness 10 mm pvc laminated gypsum boards face side laminated with textured white color pvc film 0.07 mm thick and rear side with 12 micron metallized polyster film for diffusing heat and vapour 3 labour charges