Tender For Day To Day Maintenance Of Offers/ Jcos/ Ors In Md Accommodation Under Zone A Area Under Ge (A) Ahmedabad.; 1 Note:(i) Contractors supervisor will report on all working days along with carpeneter,plumber, mason,welder,Electricians etc0830 hrs at Complaint Cell to receive complaint for plumbing,carpenter works,masonry works,welding and to submit completion report on the same day by 1700 hrs.(ii) Printed complaint slip area wise as per format approved by Engineer-in-Charge shall be provided and maintained by contractor.(iii) Rate quotedshall be deemed to incl the cost of Computer system,Cyber secured installation of App,T&P, equipment, saftey devices etc alongwith sufficient labour to full fill the requirement to the entire satisfaction of Engineer-in-charge.(iv) Cost of labour for providing new items including replacement /Demolition/ dismantling/ taking out/down of old unserviceable item shall be deemed under respective item. (v) Cost of material shall be measured and paid separately under relevant items .If complaint delayed more than 48 hrs, Rs1000/- recovery will bemade for each complaint per day(viii) No seperate payment will be paid to any tradesmen and supervisor(ix) All below maint work sites will be handed over in piece meal/patches in any qty and size for execution of the work without damaging the undamaged portion as per user requirement.(x) For the emergency work like water tanks, plumbing fittings etc which effects basic needs, stores will be procured in advance by the contractor and fixed on emergancy basis on short notice 2 Taking up or down steel tubing and connections of any description and from any position incl cleaning for refixing or removing from site. 3 15mm bore of pipe 4 20mm bore of pipe 5 25mm bore of pipe 6 S &FUnplasticised PVC pipes of pressure rating 10 kgf/cm2 fixed complete to walls, ceilings or in floors etc., any type of pipecomplete all as specified and directed. 7 15mm bore of pipe 8 20mm bore of pipe 9 25mm bore of pipe 10 S&F in repair ball valves high pressure of PTMT with epoxy coated Aluminium rod & high-density plastic bal screwed for iron pipe 20mm bore (Minimum weight 210 gms) complete all as specified and directed. 11 S&F in repairs bib taps 15mm bore of cast copper alloy chromium plated fancy type, screwed for iron pipe or for brass ferrule & fixed complete all as specified and directed. 12 S&F in repair Bib tap standard of PTMT any colour high pressure screwed for iron pipe 15mm bore (Minimum weight 90 gms) complete all as specified and directed 13 S&F in repair 15 mm dia bore pillar taps cast copper alloy with capstan heads chromium plated fixed in repairs 15mm bore fancy type screwed down, high pressure with long screwed shanks and fly nuts, screwed down for iron pipe or for union. 14 S&F in repair Stop valve of PTMT any colour high pressure screwed for iron pipe 15mm bore (Minimum weight 90gms) complete all as specified and directed 15 S&F in repair stop valve of PTMT any colour high pressure screwed for iron pipe 20mm bore (Minimum weight 112gms) complete all as specified and directed. 16 S&F in repair stop/angle valve cast copper alloy screwed down high pressure with crutch or butterfly handle for pipe of 15mm/20mm bore complete all as specified and directed. 17 S&F in repair waste coupling of PTMT (half or full threaded) for discharge pipe of 32mm/40mm bore (Minimum weight 45gms) complete all as specified and directed . 18 S & F in repairs 32 mm bore Brass chromium plated Waste coupling for wash basin with inlet and outlet screwed for pipe or connections includding necessary packing, union and cap and fixed complete all as specified and directed. 19 S&F in repair 10 litres PVC valveless, syphonic action type flushing cistern, with inlet ball valve, float and handleincloding brackets and PVC connections 15mm size with PTMT nuts oflength 600 mm complete all as specified 20 S&F in repair Rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) 500 litres capacity hoisted and fixed in position all as specified in SSR Part I complete all as specified and directed. 21 S&F in repair Rotational moulded polyethylene Water storage tanks (cylindrical vertical with closed top) 1000 litres capacity hoisted and fixed in position all as specified in SSR Part I complete all as specified and directed 22 S&F in repair PVC lids for water storage tank of cap 500 Litres/1000 Litres complete all as specified and directed . 23 Repair to GI tubing concealed or open incl replacing of unserviceable GI fittings, medium grade ISI mark like elbow, socket, nipple, union socket, tee etc with the existing size complete including making necessary threading work to be carried out upto any height or on walls for 15mm bore of pipe complete all as specified and directed by Engineer in Charge 24 Repair to GI tubing concealed or open incl replacing of unserviceable GI fittings, medium grade ISI mark like elbow, socket, nipple, union socket, tee etc with the existing size complete including making necessary threading work to be carried out upto any height or on walls for 20mm bore of pipe complete all as specified and directed by Engineer in Charge 25 S&F sinks with drainage board made of stainless steel 1mm thick kitchen or laboratory with plugs, washers and wastes ; including bedding in cement mortar on to dwarf wall or including fixing cantilever brackets and connecting unions to pipe, overall size 495mmX420mm bowl size 410mmX330mmX160mm complete all as specified and directed. 26 S&F in repair 300 mm ordinary mild steel rat tail rod pattern spring incl roller and roller plate complete all as specified and directed 27 S&F in repair Double/Singleaction spring hinges brass, with phosphor bronze wire spring, bright polished 100mm, complete all as specified and directed. 28 S&F in repair stainless steel wire cloth 0.36mm nominal dia of wire and average width of aperture 1.40mm and fixed with stainless steel wire stapples all as specified and directed by Engineer in Charge 29 S&F in repair Floor door stopper 150mm of amuminium alloy body and tongue, nodised, with dard drawn steel spring all as directed fixed in repairs. 30 S&F in repair MS handles for steel windows (left or right) 150mm size complete all as specified and directed by Engineer in Charge 31 M&L for Attending complaints related to Plumbing/Water Supply and obtaining completionfrom user including minor repair of taps by replacement of washers, tightening of taps, spindals of any size , tightening of check nuts, PVC connection and making water supply functional in case of blockage redressing of GI pipe joints if any leakage is found, repair of un-functional PVC flushing cistern, repair/replacement of face mohra etc. 32 M&L for attending complaints related to Carpenter Work and obtaining completion from user including repair of easing of doors re-fixing or retightening of doors, windows, resecuring of door/window wire guage etc including nails, screws etc required to make good the work (Replacement of hinges, door/window shutter glass panes, wire gauge will be paid separately) complete all as specified and directed by Engineer in Charge 33 M&L for Attending complaints related to black smith work and obtaining completion from user including repair of steel frames of doors and windows, CGI roof sheets, steel rolling shutter by drilling/ welding, resecuring of door/ window etc complete all as specified and directed by Engineer in Charge 34 Providing & applyingrising damp-proof costing system with single component ready to use damp- proof coating Roff Hydamp :1. Surface preparation thoroughly brush and clean all laltance, loose particles such as dirt, grease, mortar droppings , release agents, efflorescence, bird droppings , etc.All large volds or hollow portions must be removed and re-plastered , Non -moving cracks having width upto 5 mm must be filled with polymer based brack filler.2.APPLICATION :Apply the first coat of Dr fixit Damp guard Classic with a paint brushdirectly on the prepared surfaces by mixing (1 part base : 1 part hardner : 1 part of water). Allow to dry for a minimum 2-3 hrs .Apply on e part of DAMP GUARD mixed chemical and 2 parts of OPC whte cement / Birla putty and make the putty , apply putty on the entire surface area.Allow it to dry forat least 3-4 hours .Apply the Final coat of Dr Fixit Damp guard classic on the entire surface and allow the surface to air cure 48 hours proceeds for Paint 35 S&F in repair vitreous china squatting pan, Orissa pattern, size 580 x 440 mm white with integral foot rests and connection with cast iron P trap and to flushing pipe, anti syphonage pipe etc (excluding flushing cistern and flush pipe)complete with provision of lime concrete bedding including taking down/ Dismantling existing unserviceable WC of any description and in any position & fixingnew WC in repair and making good the disturbed surfaces to match with existing surfaces complete all as specified and directed. 36 S & F in repair vitreous china wash basin, white flat back , size 550mmx450mm with and including Waste fittings, brass, chromium plated forbasins with long screwed shanks and fly-nuts, flange end bedded in red lead cement and other end fixed with and including Supplying and fixing cast copper alloy chromium plated fancy typepillar tap 15mm bore,screwed down high pressure with or without lettered hot or cold with long shanks, screwed for iron pipe complete all as specified and directed. 37 S&F in repair vitreous china Wash down water closet (pedestal pattern), complete including Pedestal pan and trap and seat cover, including connection to drain ( or outgoing pipe) and flushing pipe, antisyphonage pipes etc (excluding flushing cistern and flush pipe)complete all as specified and directed. 38 S&F in repair PVC seat cover for pedestal pan, white closed pattern with flat bottom and cover and mild steel chromium plated or aluminiumisedhanging device complete all as directed. 39 Cutting chases of brick walls, pinning in, making good to facings where required and pointing in cement mortar 1:3 to ends for concealed water tubing etc and making good, cutting exceeding 10cm but not exc 20 cm girth. 40 S&F in repair for 19/20 mm harrison rail/curtain rails stainless steel chromium plated with fixing brackets stops complete all as specified and directed. 41 S&F PTMT Mirror cabinet of size 600 x 450 x 200 mm with all necessary arrangements for fixing to walls complete all as specified and directed. 42 S&F 600mmX450mm size bevelled edge mirror of selected quality glass 5mm to 5.5mm thick mounted on 6mm AC building board or commercial ply wood and plastic framing fixed to plugs with CP brass screws and cup washers fixed in repairscomplete all as specified and directed. 43 Attending complaints related to mason work such as repair to existing damaged plaster/ floor/ plinth protection/ jointing of damage brick/stone work in minor patches not exc 0.5 Sqm each including matching the surface with existing finish with necessary material like cement, sand, lime aggregate, brick stone etc complete all as Specified and directed by Engineer in Charge 44 Dismantling of Stone slabs and tiles of any description or thickness in floors, aprons etc complete all as specified and directed. 45 M&L Granite slab work 18-20mm thick in floors steps,riser,wall cladding, cooking platforms and likeincluding pointing in white cement with admixture of pigment to match with granite shade over & including screed bed 15mm thick in CM 1:6 including cutting recess opening for the sink portion and embedding complete all as specified and directed by Engineer-in-Charge. (Note : No deduction shall be made for opening of sink portion, shall deemed to be included in the quoted rate) 46 Taking down chowkats or frame with shutters (without taking off shutters from the frame) n exc 1.5 sqm each complete all as specified and directed. 47 Taking down chowkats or frame with shutters (without taking off shutters from the frame) exc 1.5 sqm and n exc 4.0 Sqm each complete all as specified and directed. 48 Taking down shutters of any descriptionexc 1 Sqm but n exc 2.0mcomplete all as specified adnd directed. 49 S&F 30 mm thick Flush shutters, solid core construction, with block board core and plywood face panels, commercial type on both sides incl decorativelaminated sheet on both faces. 50 S&F factory made35 mm thick2nd class hardwood glazed and skeleton shutters, open rebated and prepared to receive glass, gauge, etc., divided into squares, with plain, chamfered or rounded, mitred and rebated sash members, any numbers and mited beads for securing glass, etc., sizes of members of shutters as specified in SSR Part I, Section 8, clause 8.20(a) supplied and fitted to chowkats complete all as specified and directed. 51 S & F stainless steel wire cloth 0.36 nominal dia wire & average width of aperature 1.40 mm fixed with stainless steel wire staples complete all as specified and directed 52 Preparation of new or previously untreated wooden surfaces of any description, not otherwise, described, over 10cm width or girth and applying two coats of synthetic enamal paint over a coat of pink primer complete all as specified. 53 M & L for preparation of old painted wooden : surfaces of any description postion and location not otherwise described over 10cms width or girth and applying one coat of synthetic enamel paint (ordinary tint) complete all as specified and directed 54 All as per item No 1.52 above but applying one coat of synthetic enamel paint (ordinary tint) on steel surfaces, complete all as specified and directed 55 S&F solid PVC door frame of size 50mmX47mm made out of 5mm both side prelam PVC sheet used instead of Plain colour PVC sheet & edges will be painted to match with prelam sheet reinforced with M.S. Square tube, suppling & fixing in opening all as per specifications and drawing shown on sl page No 150 of SSR part II (for item-884). 56 S&F factory made solid panel PVC door shutter 30mm thick (Style) consisting of frame made out of MS tubes for top & bottom rails. MS frame shall be covered with heat moulded plain colour PVC C channel having a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles & both side prelam PVC sheets for top rail, lock rail & bottom rail on either side & as gap insert for top rail & bottom rail ; panelling of both side prelam PVC sheet to be fitted in the MS frame welded/sealed to the stiles & rails with suitable PVC sheet beading & jointed together with solvent cement, supply & fixing in the frame at site as per SSR specifications & diagram/product drawing shown on sl page NO 146 of SSR Part II with the size of door shutter as required & directed by the Engr-in-Charge. 57 S&F 3 track aluminium powder coated framed windows consisting of 92 x 31.75 x 1.50 mm thick sliding track size and size of window shutter should not be less than 40 x 18 x 1.50 mm thick and two shutters will be filled with 5 mm thick tinted glass and one shutter with S.S. wire cloth and all the window frame will be fixed in opening as windows above 92 x 36 x 1.50 mm thick aluminium sections including necessary rubber gasket complete all as specified and as directed.Note :Rates include all glazing/aluminium wire cloth, rubber packing, jointing cleats, glazing clips, aluminium snap beading, locking arrangements, handleetc. 58 S & Faluminium anodisedventilator with fixed aluminium frame of size 65 x 40 x 1.98mm thick fixed in vertical position with aluminium vertical members andhalf portion to be provided with 4mm thick pin head glass and remaining portion to be louvered using 4mm thick pin head glass including necessary channel frame work, including rubber gasket and frame with wire mesh of aluminium,and deco grill ,aluminiumbeading complete all as specified and as directed. 59 S&F for butt hinges 100mm size medium weight stainless steel . 60 M&L for 150mm long extructed aluminium handle fabricated type complete all as specified and directed. 61 S&F Aluminium anodised barrel tower bolt of extruded section 200 mm sizecomplete all as specified and directed. 62 S&F aluminium alloy anodised sliding door bolt with hasp and stapple (bolt type) and fixing clips of sheet cast or extruded section with fixing bolts and sliding bolt of extruded section 300mm length & dia not less than 12mm with & including 6 Nos of bolts complete all as specified and directed. 63 Dismantling wall and ceiling boards any thickness including cover fillets complete all as specified and directed. 64 S&F Tee grid suspension system of size 600 mm x 600 mm type-1 made out of roll framed hot dipped galvanised steel zince coated of not less than 120 gm/Sqm, main runner 0.3 mm thick of section24 mm x 33 mm crross runner 0.30 mm thick of section 24 mm x 25 mm, wall angle shall be 0.63 mm thick of section 24 mm x 24 mm grid shall be suspended by 4 mm dia adjustable quick fit hanger rod, system exposed portion shall be pre painted polyester coated in off whitee/white in colour complete with material, fixing, jointing etc., with Coloured textured designer ceiling board (Everest)/Asbestos Cement white fiber Board 4mm thick of size 595 x 595 mm fixing with screws/clips complete all as per manufacturers instructions and direction. 65 Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing) including removing the rubbish off the premises complete all as specified and directed. 66 M & L for Non - skid Ceramic tiles 7 to 8 mm thick (square/ rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to matchincl and over screed bed or beeding layers of mortar 15mm thick in CM 1:6 in floors, complete all as specified and directed.complete all as specified and directed. 67 M&L for Glazed ceramic tiles coloured (300x450mm) x 7mm thick, on wall dado etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match incl 10mm thick backing coat of tiles in CM (1:4) complete all as specified 68 M & L for vitrified ceramic tile, light shadeflooring of sizeof tile 600x600x8-10mmthick as in floor, set and jointed in neat cement slurry and pointed in coloured cement to match the suraface over and including screed bed or bedding layer 15mm thick in cement mortar 1:4 including roughening of old surface complete all as specified and directed. 69 M & L for vitrified ceramic tile, light shadeof size 600x600x8-10mmthick as in skriting set and jointed in neat cement slurry and pointed in coloured cement to match the suraface over and including 10 mm thick rendering in CM 1:4 complete all as specified and direceted. 70 Taking down cement or lime plaster of any description from stone or brick walls etc including raking out joints, hacking for key scrubbing down with water and disposing off the rubbish complete all as specified or directed. 71 M&L for rendering on external wall fair faces of brick work in one layers i.e., 15 mm thickin CM 1:4 mixed with water proofing compound in top layer @3% by the weight of cement or as per manufacturers instructions finishing the surface fair and even without using extra cement complete all as specified and as directed. 72 M&L for 10 mm thick rendering on internal wall surfaces other than fair faces of brick/concrete surfacesin CM (1:6) and finished even and smooth without using extra cement complete all as specified and directed 73 M & L for 10mm thick rendering on cement concrete as in ceiling with cement mortaar 1:3 complete all as specified and directed. 74 Supply only integral water proofing compound conforming to IS: 2645 - 1975 specification complete all as specified and as directed 75 M&L for preparation of the newly plastered surfacesof walls & applying two coatsOil bound distemper, white or tintedover a coat of primer surfaces of wall complete all as specified and directed. 76 M&L for preparation of new plastered surfaces on wallsand applying two coats of cement based paint over one coat ofPrimer on walls complete all as specified and directed. 77 M&L for preparationof new surfaces of ceiling plastered sheet andapplying three coat of white wash complete all as specified and directed 78 M&L for perparation of old decorated surface of walls (plastered/unplastered) including cornices, pilasters etc by brooming down or steel wire brushing, scraping down smoke, soot moulds, moass and effloroscent salts trading oil and greasy spots and applyingone coat of white wash on ceilings. 79 All as per item No 77 above but one coat of oil bound distemper on wallscomplete all as specified and directed 80 All as per iten No 77 above but one coat of cement base paint on walls complete all as specified and dircted. 81 M&L for complete removal of existing treatment on wall by brooming down or scraping down smoke ,soot moulds,moass and efflorcocent salts trading oil and greasy sposts to surfaces of wall and applying two coats of cement base paint over a coat of alkali resistace primer complete all as specified and dircted. 82 M&L for complete removal of existing treatment and applying two coats of Oil Bound Distemper over 1.00 mm avg thick of wall care putty and alkali resistant priming paint on wall.complete all as specified and dircted. 83 Demolition ofBrick work or stone/boulder masonry, build in cementmortar or cement lime mortar including all quions, arches, pillars etc, but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and directed. 84 M&L for brick work with sub class B bricks straight or curved on plan exc 6 mtr mean radius built in CM 1:6 complete all as specified and directed. 85 M&L Brickworkwith old size sub class B bricks, straight or curved on plan to any radius in half brick thick walls, built in In CM (1:4) complete all as specified and directed. 86 Repair of steel window shutter not exc 1 Sqmeach by replacing projected type unserviceable hinges with welding new hinges or welded of existing broken hinges and handles to window frames easing of shutter top proper closing with oiling to hinges and painting at welded portion to match the existing surface complete all as specified and directed. 87 Hacking out old broken glass (any thickness, size, quality or description) from wooden or metal frame including punching or drilling out old glazing pins/spring clips complete all as specified and directed. 88 S&F 3mm thick sheet glass ordinary quality and glazing with oil putty& pins/spring pins complete in squares n.exc 0.50 sqm each pane complete all as specified and directed 89 S&F 3mm thick frosted glass panes and glazing with oil putty & pins/spring pins complete in squares n.exc 0.50 sqm each panes complete all as specified and directed 90 S & F of mild steel work such as window guard bars door frame and similar work conforming to Fe – 290 Grade – E 165 complete all as specified and directed. 91 S&F Framed work as in doors or gates of angle or other section with gusset plates, rails,braces, etc., complete, drilled for fixing of steel heeting or other covering. Doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hangingdoor fittings (exclusive of steel sheeting or other covering,running rails and guides) and hanging; also fastening and fixing complete complete all as specified conforming to Fe – 410 W Grade – E 250complete all as specified and directed. 92 S&F Rolled sections as in Purlin ,rafter ,main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; fixed with angle cleats or other connecting plate conforming to Fe – 410 W Grade – E 250complete all as specified and directed. 93 M&Lfor preparation of new steel surfaces exc 10cm width or girth and applying two coats of synthetic enamel paint over one coat of red oxide primer complete all as specified. 94 S&F in repairs shower rose 150 mm dia/square of brass chromium plated fancy type with or without swivel joint suitable for fixing to 15mm bore GI pipecomplete all as specified and directed. 95 S&F stainless steel kitchen plate rack, 1 mm thick of size 900 mm x 780 mm x 222 mm fixed to wall in repairs with brass screws complete all as specified and directed. 96 S&F in repair health faucet with one meter tube and hook complete all as specified and directed 97 S & F in repair 15mm size PVC connections with PTMT nuts of length 450mm and fixed in repairscomplete all as specified and directed. 98 S/Fgrating doom 150 mm size of PTMT (Minimum weight 100 gms)complete all as specified and directed. 99 Taking down CI/PVC/AC soil pipe with fittings from wall, treches of any description including fittings. 100 S & F 110mm PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors incl fittings and fixtures like bend , elbow,tee etc.complete all as specified and directed. 101 S & F 110mm PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls incl incl fittings and fixtures like bend , elbow,Y(equal or unequal),tee etc.complete all as specified and directed. 102 S&F in repairs 75mm bore for SS floor trap, plain with grating including jointing with solvent cement including jointing with solvent cement..complete all as specified and directed. 103 S & F fixed in repair Sheet glass shelf assembly consisting of 5.5mm thick sheet glass shelf 12cm wide with chromium plated bracket guard and railing 60cm long complete all as specified and directed. 104 S & F fixed in repair corner glass shelf assembly consisting of 5.5mm thick sheet glass shelf 12cm wide with chromium plated bracket guard and railing 60cm long complete all as specified and directed. 105 S&Fmild steel tubular / rectangluar section as in coloumn, posts, raffetrs beams gasset plate andstruts embedding in concrete , and screwing etc complete all as specified and directed. 106 Taking down shutter resecuring, easing and cuttingrefixing in the same openingshutters of any description exc 1 Sqm and not exc 2 Sqmcomplete all as specified and directed. 107 S&F in repair 18/19 mm thick prelaminated particle board, interior grade, prelaminated one side with decorativechoice lamination & other side balancing white lamination, fixed with screws/nails to timber frame work as in cupbord door/shelves complete all as specified and directed 108 S & F 24mm thick factory made 100% solid PVC flush shutter made from co-extruded three layer rigid foam sheet (Single extruded) with 0.8 to 1 mm thick outer face layer having density not less than 1400 Kg/cu m and density of central core not less than 600 kg/cu m, manufactured by an ISO 9001-2015 certified company all as specified and directed. 109 S & F 100 x 63mm single rebated factory made, 100% solid WPC (Wood Polymer Composite) paintable door frame made from 100% lead free (Single Extruded Process) material with density not less than 780 kg/Cu m all as specified and directed.Note :(a)Door frame shall be water proof, termite proof, fire retardant and having excellant screw holding capacity.(b) Rate for this item includes Material and labour for fixing of frame with minimum 06 Nos of hold fasts/Dash through bolts of suitable size as directed by Engineer-in-Charge. 110 S & F MS Auto hinges of crank 0 degree & 90 degree, fixed with screws to timber frame complete all as specified and as directed. 111 Dismantling of Asbestos cement (corrugated, semicorrugated, etc.) sheets in roof coverings incl ridge etc.complete all as specified and directed. 112 S&F 6mm thick asbestos cement, corrugated or semi-corrugated sheets in roofs, walls etc.fixed with L-type or screws J-type or cranked hook bolts complete all as specified and directed. 113 S&F Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified complete all as specified and directed. 114 S&F Pre-painted galvalume aluminum 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 self tapping screws as specified complete all as specified and directed.
