supply of grating and handrail the scope of supply includes procurement of raw material, fabrication, inspection, transportation, and supply of the gratings to be installed at numaligarh refinery limited , gratings supplying, fabricating and transporting to owner’s store/ storage yard, electroforged grating, . conforming to material requisitions , for square/rectangular gratings , for toe guard (100x5) as per specification tp 1zzza-cv-sdd-0003 , stair treads supplying, fabricating and transporting to owner’s store/ storage yard,stair treads electroforged conforming to material requisitions , for stair tread of 900x275 mm , for straight handrail:supplying, fabricating 1000mmhigh horizontal hand railing as per standard tp-1zzza-cv-sdd-0003 (for platforms, walkways, etc. or any other location as directed) consisting of top rail, mid rail and vertical posts (maximum spacing 1500mm c/c) with 32mm nominal diameter medium grade ms tubes conformingto is:1239 and 100x5 ms toe plate confirming to is:2062 (grade 250a),as per techical mr , for staircase handrail:supplying, fabricating as per standard tp-1zzza-cv-sdd-003 at all locations 1000mm high inclined hand railing(forstaircases) consistingof toprail,midrailand vertical posts (maximum spacing 1500mm c/c) with 32mm nominal diameter medium grade m.s. tubes confirmingto is:1239includingstraighteningif required,cutting,bending, welding,bolting,cleaning,surfacepreparation, coating and painting as per specification tp-1zzza-pi-spe-0003 as per technical mr , for circular handrail :supplying, fabricating, cutting, bending, welding, bolting, m.s. hand railing of height 1000 mm for circular platform with top rail as 32 mm nb(medium class) conforming to is:1239 & midrail as 50x6 mm flat and vertical post ofangle 50x50x6 @1500mm c/c including 150x100 x 10 mm thick toe angle conforming to is:2062 (grade 250a), including straightening if required,cleaning, surfacepreparation, coating and painting as per specification tp-1zzza-pi-spe-0003 as per technical mr