REPAIR/RENEWAL AND MAINTENANCE OF FIRE FIGHTING SYSTEM, SOLAR WATER HEATER, CENTRAL AC PLANT AND AHU UNITS, SEWAGE TREATMENT PLANT, TESTING, CLEANING AND CONNECTED ALLIED WORKS AT CDM UNDER AGE E/M NO 1 OF GE (UTILITY) SECUNDERABAD

Amount

M&L for preventive maintenance and testing of fire fighting system control panel consisting zone type microprocessor based panel, fire/smoke/flame detectors and connected to CO2 cylinder bank of two zones consisting of 06 cylinders in each zone of 125 kg each and 100 kg FM200 in Gandhi Block by creating artificial smoke/fire in the presence user/CDM and MES representative and resetting the system after testing at site and preparing the test result sheet complete all as specified and directed.

M&L for preventive maintenance, testing and attending complains of fire alarm system having wireless control panel consisting zone type microprocessor based panel, wireless photo electric fire/smoke detectors with artificial smoke/fire in the presence of user/CDM and MES representative including clearing the minute particles with air blower of smoke detectors and resetting the setting after testing in Ashoka, Gandhi block, Library, SP block and Ashwamedha block in the period of 3 months complete all as specified and directed. Note: Testing should be done by Ceasefire/visonic company.

M&L for filling of CO2 gas in 45 kg cylinders of CO2 bank including disconnecting the cylinders from manifold and refixing carefully with necessary teflon thread seal tape and hardware at site complete all as specified and directed.

Supply and replacement of 1/4'' highly inflammable hose pipe assembly of length 300mm (as per sample) and is connected to CO2 gas cylinder master valve to slave valve assembly and approved ISI std and specified and directed.

Supply and replacement of 1/4'' highly inflammable hose pipe assembly of length 500mm (as per sample) and is connected to CO2 gas cylinder master valve to header pipe and complete all as specified and directed. Note : Make shall be ISI marked and as approved by GE.

Taking out and dismantling of unserviceable CO2 Master valve assembly from the cylinder and cleaning of all the dismantled parts of cylinder and replace the damaged CO2 master valve complete with 24 solenoid and manual release lever with new at site and testing the same on completion all as specified and as directed.

Taking out and dismantling of unserviceable CO2 slave valve assembly from the cylinder and cleaning of all the dismantled parts of cylinder and replace the damaged CO2 slave valve complete with pneumatic actuator and manual lever with new at site and testing the same on completion all as specified and as directed.

M&L 10Kg Standalone Suppression System- HFC236 fa ceiling mounted fire extinguisher clean agent stored pressure gauge weight 14.8Kg, empty weight 4.8Kg can height 316MM, diameter 300MM, discharge time less 10Secs, Auto discharge mechanism on temperature rise applicable on class A,B,C and electrically started fire, can construction: Deep drawn & CO2, mig welded valve construction forging & machining, internal coating of Can: Epoxy coating external coating of can: Epoxy polyester powder coating sheet metal thickness: 2.0MM helium leak detection tested, 5 Years warranty. Make: Product code CF-000770 OF CEASEFIRE or techno commercial equivalent as approved by GE

M&L 5Kg Standalone Suppression System- HFC236 fa ceiling mounted fire extinguisher clean agent stored pressure gauge weight 7.7Kg, empty weight 2.7Kg can height 267MM, diameter 230MM, discharge time less 10Secs, Auto discharge mechanism on temperature rise applicable on class A,B,C and electrically started fire, can construction: Deep drawn & CO2, mig welded valve construction forging & machining, internal coating of Can: Epoxy coating external coating of can: Epoxy polyester powder coating sheet metal thickness: 1.6MM helium leak detection tested, 5 Years warranty. Make: Product code CF-000771 of CEASEFIRE or techno commercial equivalent as approved by GE

Supply , Installation Commissioning and testing of wireless Panel : Operating frequency range : 868.15 MHz to 869.85 MHz maximum radiated power 5 dBm (3 MW) operating frequency channels : 7 communication range with translator or expander module , IP rating :42 dimensions : 85 mm * 85 mm weight (without batteries) : 134 gms , primary power cell : CR123A (3V & 1.2Ah) secondary power cell : CR2032A (3V & 0.2Ah) Operating Temperature: - 30 degree C to +55 degree C , maximum tolerated humidity (no condensing) : 95% RH Complete all as specified and directed.

Supply, fixing and testing of wireless photo electric smoke detector comprising with following specification complete all as specified and directed. Specifications:- (i) Cover range : 50 Cubic meter to 100 Cubic meter (ii) Battery type : 3V CR 123A (iii) Battery expected life : 5 year (iv) Weight : 165 gram (v) Operating temperature : 10 degree C to 50 degree C (vi) Operating environment : Indoor (vii) Dimension : 120 mm x 58 mm

Supply and fixing of suitable at site 3V CR123A Lithium Battery of wireless photo electric smoke detector with having life of 5 year , along with testing after fixing of detector including taking down old unserviceable battery complete all as specified and directed. Make : Panasonic

Supply, installation, commissioning and testing of smoke detector of type Photoelectric / Optical with base with self inbuilt intelligence and compared to EN-45 addressable type complete all as specified and directed. Make: Reliance/Zeco Wizmart/Notifier

Supply, installation, commissioning and testing of Heat detector type Photoelectric / Optical with base with self inbuilt intelligence and compared to EN-45 addressable type complete all as specified and directed. Make: Reliance/Visonic/Notifier

Testing and Commissioning Pressure test the system with dry Nitrogen upto 300 PSI and rectifying the leakages , pressure hold upto 300 PSI for 48 Hrs , Vacuumizing the system upto 500 microns & commissioning the unit, test running etc as per requirements Note : Refrigerant gas shall be paid separately.

M&L for Cleaning/descaling of cooling coil fins of IT center AHU of 66TR capacity for oxides, dust and improving the heat transfer capacity by using 50% concentration HCL/H2SO4 cleaning acid and brushing all as directed by Engineer-in-Charge. MAKE : ACCEL or techno commercial equivalent as approved by GE

M&L for Cleaning/descaling of cooling coil fins of Library AHU of 33TR capacity for oxides, dust and improving the heat transfer capacity by using 50% concentration HCL/H2SO4 cleaning acid and brushing all as directed by Engineer-in-Charge.

M&L for Cleaning/descaling of cooling coil fins of Ductable ACs of 11 TR capacity for oxides, dust and improving the heat transfer capacity by using 50% concentration HCL/H2SO4 cleaning acid and brushing all as directed by Engineer-in-Charge

Repairs of Indoor PCB Controls of 11 TR AC as specified and directed.

Supply & Fixing of New Controls with remote for 11 TR Ductable unit as specified and directed . Make:- HITACHI or techno commercial equivalent as approved by GE

Supply & Fixing of PCB of 11 TR HITACHI Outdoor unit as per requirement of site . Make:- HITACHI or techno commercial equivalent as approved by GE

Supply & Fixing of Electronic Thermostat including replacement of unserviceable old Thermostat as per requirement of site. Make:- HITACHI/VOLTAS or techno commercial equivalent as approved by GE

Supply and fixing of liquid line filter 5/8 as per requirement of site all as specified and directed

Supply and Charging of Refrigerant Gas R-410/407C or equivalent in Froen/Mafron family in sealed cylinders all as directed by Engineer-in-Charge

Supply and fill Compressor Oil Make : Sheetal (IOC) or techno commercial equivalent as approved by GE

Supply, fixing and commissioning Scroll Compressor of Capacity 11 TR with all its specification including removing of Old unserviceable compressor as per requirement of site.

M&L for Servicing of Compressor Suction and discharge Shut-off Valves by replacing Teflon washers and hard ware for proper functioning all as directed

S & F for replacement of the following unserviceable items of LT panel board of the AC plant and air cooling system :

MCCB 32 Amps , 3 phase 3 pole, 25 KA, 415 volts with fixed magnetic settings complete. Make : L & T type DNO-100C or techno commercial equivalent as approved by GE.

MCCB 63 Amps , 3 phase 3 pole, 25 KA, 415 volts with fixed magnetic settings complete. Make : L & T type DNO-100C or techno commercial equivalent as approved by GE.

Front Mounting Add-on aux. Contact Block MNX A2 Make :- L&T or techno commercial equivalent as approved by GE

Power contactor 3 pole 25 amps 415 volts type ML-3, Make Cat Part No 3TS3300 of SIEMENS or techno commercial equivalent as approved by GE

Power contactor 3 pole 25 amps 415 volts type ML-3, Make Cat Part No LC1E2501M7 of SCHNEIDER or techno commercial equivalent as approved by GE

Over load relay 3 phase 440 volts 28 to 42 amps Make : L & T type ML-3 or techno commercial equivalent as approved by GE

MCCB 100 Amps , 3 phase 3 pole, 25 KA, 415 volts with fixed magnetic settings complete. Make : L & T type DNO-100C or techno commercial equivalent as approved by GE.

Rewiring of 11 TR outdoor unit fan motor as specified and directed.

M&L for servicing and over hauling of 66/33 TR AHU Blower motor of 7.5 HP including varnishing the stator and replacing the worn out drive end/driven end bearings and greasing and reassembling and testing complete all as directed

S & F for replacement of unserviceable "V" belts suitable for 7.5 HP air blower motor size of "V" belt complete, all as specified and directed .

Supply and fix PVC insulated flexible stranded copper conductor of size 16 sqmm x 4 core complete all as specified and directed. Make :- Havells/ Polycab/KEI

M&L for servicing of Solar water Heater 200 LPD HHC System including changing of gasket, minor spares part as per requirement on site complete all as specified and directed.

Removing unserviceable and thermostat fixing the new one as requirement on site all as specified and directed.

M & L for servicing of 20 KW Solar power plant, inverter, DC wiring including minor Spare part upto Rs 1000 each after disconnection the DC/AC Cable and resetting the plant after testing complete all as specified and directed.

Supply & fixing of Charge Controller unit (8 Amps or required on site) for Solar Light 28 Watt including taking down old unserviceable one complete all as specified and directed.

Supply & fixing of Solar LED Street light 28 Watt including taking down old unserviceable one complete all as specified and directed.

Supply, Install, Testing and Commissioning of Advance Maintenance Free G.I. SAFE EARTHING Electrode with PIPE of not less than 50 mm outer dia) and two meter length, The electrode should be of galvanised (80 -100 micron) along with earth lead as Galvanised steel strip of size 32 X6 mm 7.5 m. The GI Electrode shall be pre-filled with Crystalline Conductive Material (CCM). The GI electrode shall be surrounded with 25 kg Backfill compound to provide maximum contact between the electrode and Back Fill Compound. The earthing pit cover should be factory built (size TOP- 10 Inch, Bottom -13 Inch, Height 10.25 Inch ) made of heavy duty Polypropylene complete all as specified and directed.

Repair/Maintenance, excluding spares but including regular maintenance of the Sewage treatment plant of capacity 50 Cum/day installed at CDM Dhruva under AGE E/M No 1 including carrying out complete maintenance /servicing/ repair as required of all the sub systems viz control panels , compressor blower , pump motors, lamella plant, filter press, filtration plant & sodium hypochlorite dosing plant ( with all the accessories) breakdown maintenance and replacement of unserviceable parts, re-fixing of old serviceable parts/new parts if any including the following and all as specified and directed by Engineer-in-Charge

Note :- (i) New parts if any shall be paid under separate items as supply only (ii) Unit rate quoted by tenderer is of checking of system monthly by technician and necessary servicing and repair job signed by JE /Engineer-in-Charge (iii) Unit rate quoted by tenderer is of checking of system fortnightly by Engineer and necessary servicing and repair job signed by JE /Engineer-in-Charge (iv) In addition to above specific emergency complaints receiving telephonically from time to time shall be attended within 24 hrs after receiving the same (v) The scope of work includes the charges required for removing, repairing, refixing, carrying out electrical termination and fixing/installing testing commissioning etc and all as directed (vi) The work has to be carried through ion exchange company authorized representative

M&L for emptying and cleaning/removal of hold up sewage from and sludge from drains including cleaning of Bar Screen chamber of STP of capacity 50 Cum/Day all as specified and directed by Engineer-in-Charge

M&L for removal of sewage and garbage from oil grease chamber of STP capacity 50 Cum/Day with the help of sewage pump mounted on portable bowser complete all as specified and directed by Engineer-in-Charge

M&L for removal of sewage and garbage from collection tank with the help of sewage pump mounted on portable bowser and replacement of air diffusers with unserviceable distribution pipe network of STP of capacity 50 Cum/Day all as specified and directed by Engineer-in-Charge

M&L for removal of sewage and garbage from Aeration tank of STP of capacity 50 CUM /day with the help of pump mounted on portable bowser/manual including cleaning of distribution piping network complete all as specified and directed

Supply of New Micron Cartridges along with Housing suitable for STP of capacity 50 Cum/day including taking down old unserviceable all as specified and directed by the Engineer-in-Charge

M&L for removal of sewage and garbage from lamella clarifier including painting with one coat of red oxide and two coat of synthetic enamel paint and cleaning of fiver setting plated of lamella claffier complete all as specified and directed by Engineer-in-Charge

M&L for emptying cleaning of sand media filter including welding work etc complete all as specified and directed by Engineer-in-Charge

Dismantling the unserviceable part of sewage treatment compressor blower and replace with new spare part including testing after completion all as specified and directed by Engineer-in-Charge

M&L for servicing and over hauling of 2HP induction motor including varnishing the stator and replacing the worn out drive end/driven end bearings, greasing,reassembling and testing complete all as directed AT STP

M&L for servicing and over hauling of 1 HP induction motor including varnishing the stator and replacing the worn out drive end/driven end bearings, greasing, reassembling and testing complete all as directed

Supply Only Water treatment chemical Bio Clean Septic Powder available complete all as specified and directed

Supply only Water treatment chemical sodium hypo Chloride consisting 14% chlorine content diluted ClNao, complete all as specified and directed.

Supply only Water treatment chemical enzyme-2 (DAP consisting 18:46:0, 18% Nitrogen and water soluble phosphates 46% by minimum weight, packed in 50 Kg Polythene bag complete all as specified and directed. Makes : Akron India Pvt Ltd/Andhra Sugar Pvt Ltd/Aquafit India Pvt Ltd/IIFCO India Ltd or techno commercial equivalent as approved by GE

Supply only Activated Carbon Filter media (ACF), Grade IV-900, size of layer as complete all as specified and directed. Makes :Granular/Norit Note: ACF Media combination quality & quantity shall be as directed & recommended by OEM only.

Supply only Activated sand Filter media (ASF), size of layer complete all as specified and directed. Note: (a) ASF Media combination quality & quantity shall be as directed & recommended by OEM only. (b) Daily consumption quantity of each item viz, Chemical Bio Culture Bacteria solution, Sodium Hypochlorite etc shall be submitted. Also daily consumption of all chemicals shall be recorded in register and maintained at site. (c) The manufacturer shall comply and guarantee the authenticity of the product by providing Test Certificate with Hologram which will be provided by the Authorised Distributor at the distribution point for each Batch of Product delivered on their letter head. (d) The manufacturer will affix its hologram on each and every drum/container/bag. If the said product is delivered without the said hologram and/or it is seen to be tampered, then the product can be discarded as spurious.

Material and labour for MBBR fluidised bio-media of virgin PPUV stabilized material, cylindrical with external fins structure, black colour,22mm dia x 16mm height ,specific gravity 0.9 to 0.95 gms/sqcm all as specified and as directed . Make: TP Aqua/Cool tech/Hydrotech as approved by GE.

Material and labour Bactria culture for STP for developing MLSS and control odor complete all as directed by Engineer-in-Charge. Make: Organic plus or techno commercial equivalent as approved by GE

M&L for rewinding of the electric motor of above 5Hp upto 7.5 HP capacity duly disconnecting (electric/water connection) and taking down electric motor (mono block/centrifugal) from the existing position and inspecting the same, transporting to workshop for repairs and bringing it back. Cutting and removing the burnt out winding conductors, rewinding the same with same gauge and weight of insulated super enameled copper conductor and providing cotton insulated sleeves, varnishing, drying, refixing in position checking the alignment along with pump set connecting up with the electrical and water line connection system, testing and commissioning complete all as directed.

M&L for rewinding of the electric motor of upto 5 HP capacity duly disconnecting (electric/water connection) and taking down electric motor (mono block/centrifugal) from the existing position and inspecting the same, transporting to workshop for repairs and bringing it back. Cutting and removing the burnt out winding conductors, rewinding the same with same gauge and weight of insulated super enameled copper conductor and providing cotton insulated sleeves, varnishing, drying, refixing in position checking the alignment along with pump set connecting up with the electrical and water line connection system, testing and commissioning complete all as directed.

Opening of the unserviceable bearing from the centrifugal pump set replacing the same with the new bearing set suitable for motor/ pump set 7.5HP capacity including re-aliging the pump and motor complete all as directed.

Opening of the unserviceable bearing from the centrifugal pump set renewing the same with the new bearing set suitable for motor/ pump set 1/2/3/5hp capacity including re-aliging the pump and motor complete all as directed.

Supplying of 'Aquafit' Brand calcium hypochlorite 65-70% chlorine content in granular form to mix with drinking water which is received at Pump house for purifying the water & maintaining its PPM, complete all as specified and directed. Make: Sree rayalama Hi-Strength Hypo ltd or techno commercial equivalent as approved by GE

Repairs to sewage pump including replacing the impeller upto 5 HP mud pump Kirloskar and unserviceable parts viz bushes, gland cover with nut bolts gland rope etc complete all as directed by Engineer-in-Charge.

Repairs to sewage pump including replacing the impeller above 5 upto 7.5 HP mud pump Kirloskar and unserviceable parts viz bushes, gland cover with nut bolts gland rope etc complete all as directed by Engineer-in-Charge.

Reconditioning of shaft by metal filling and machining as required and replacement of shaft sleeves with new one of capacity rating up to 5 hp pump set Note :- Without causing any interruption of regular water supply and complete all as directed by Engineer-in-Charge.

Reconditioning of shaft by metal filling and machining as required and replacement of shaft sleeves with new one of capacity above 5hp up to 7.5hp pump set Note :- Without causing any interruption of regular water supply and complete all as directed by Engineer-in-Charge.

Repairs/replacement of wornout spares of Air blower 3-ph,415volts,50hz of capacity 130cum/hr @0.4KSC,twin loop type including suction filter, motor pully & replacement of unserviceable spares such as 'V' belt, bearings, shaft, suction filter, motor pulley & blower motor oil with new one including all necessary misc items for satisfactory completion of job complete all as specified & directed by Engineer-in-Charge

M&L cleaning the all/any type of tanks pertains to sewage treatment plant 50KLD of receiving sump(collection tank) with suitable chemicals, drying the tanks and disposal of Dry sludge minimum distance of 1km radius from STP location & maintain high level hygiene in STP premises complete all as specified and as directed by Engineer-in-Charge. Note: For disposal of dry sludge contactor shall make arrange transport system quoted rate shall be inclusive in unit rate.

Taking out water sample from collection/receiving sump of STP in clean container and getting the same tested from the “any central/state govt approved labs ” for Ph/COD/BOD & other parameters as mentioned in standard proforma of TS pollution control board complete all as directed by Engineer-in-Charge. Note: Contractor shall make arrangements for taking out the sample & deemed to be inclusive in quoted rate.

Taking out water sample from treated water sump of STP in clean container and getting the same tested from the “any central/state govt approved labs ” for Ph/COD/BOD & other parameters as mentioned in standard proforma of TS pollution control board complete all as directed by Engineer-in-Charge. Note : Contractor shall make arrangements for taking out the sample & deemed to be inclusive in quoted rate.

M&L for cleaning of sewage well including chocking of all incoming sewage line entering to sewage well for dewatering and desuldging of slurry of sewage pump

M&L for De- watering sewager cleaning machine of cap 3000 ltrs and depositing in MCD main hole at distance of 1 Km

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for laying of mains / Poles, stay, cables and the like not exc 10 sq m on plan and not exc 1.5 m in depth and getting out in Hard / Dense soil complete all as specified and directed.

M & L for Supply, spread and filling approved river sand in cable trenches as cushioning of under ground cables including punning down of sand in layers complete all as specified and directed. Note:- Thickness of sand cushion after punning down will only be measured and paid.

Supply and lay un-reinforced precast concrete cable cover block, class LV, Type I flat size 250 x 150 x 40 mm laid dry in trenches over under ground cables complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc 25 cm in soils complete all as specified and directed.

Removing excavated material (soils) n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

Laying only XLPE insulated PVC sheathed armoured heavy duty LT UG electric cable with aluminium conductor 1100 volt grade laid in trenches / fixed on wall / pole of cross sectional area of cable 16 Sqmm, 4 core including taking down old unserviceable cables complete all as specified and directed.

All as per item No 78 here-in-before but cross sectional area of cable 25 Sqmm, 3.5 core.

S&F in repairs CI foot valve leather sheet type / flange type suitable for 80 mm dia GI suction heavy duty including replacement of nuts, bolts washers, gaskets and flanges etc. complete all as directed and specified by Engineer-in-Charge.

S&F in repairs CI foot valve leather sheet type / flange type suitable for 50 mm dia GI suction heavy duty including replacement of nuts, bolts washers, gaskets and flanges etc. complete all as directed and specified by Engineer-in-Charge.

S&F in repairs PVC foot valve leather sheet type / flange type suitable for 50 mm dia GI suction heavy duty including replacement of nuts, bolts washers, gaskets and flanges etc. complete all as directed and specified by Engineer-in-Charge.

Supply, lay and fixing steel water tubes, medium grade, galvanised with all fitting laid in trenches as in repairs complete all as specified and directed for 50mm dia bore of pipes :-

Supply and laying of 3-layer PP-R Polypropylene random copolymer pipes SDR 7.4 & SDR 11 UV Stabilised and antimicrobial welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings laid in trenches etc all as specified and directed of following bores.

32 mm bore.

40 mm bore.

50 mm bore.

75 mm bore.

Supply and fix 32 mm PP-R Gate valves ( brass insert) as per requirement of the site complete all as specified and directed

Supply and fix 40 mm PP-R Gate valves ( brass insert) as per requirement of the site complete all as specified and directed

Supply and Fix PVC pipes of pressure rating 6 kgf/cm2 laid in trenches complete all as specified and directed

25 mm bore.

40 mm bore.

Supply and Fix 63 mm PVC pipes of pressure rating 4 kgf/cm2 laid in trenches complete all as specified and directed

Supply and Fix 75 mm PVC pipes of pressure rating 4 kgf/cm2 laid in trenches complete all as specified and directed

Supply & Fixing PP Ball Valve 40mm bore complete all as specified and directed.

Supply & Fixing PP Ball Valve 63mm bore complete all as specified and directed.

Supply & Fixing PVC Flush Valve 40mm bore complete all as specified and directed.

Supply & Fixing PVC Flush Valve 63mm bore complete all as specified and directed.

S&F of sprinkler of having 180 degree angle movement and 15 M radius complete all as specified and directed

M&L for emptying and cleaning/removal of hold up sewage from and sludge from rain water harvesting tanks all as specified and directed by Engineer-in-Charge

M&L for emptying and cleaning/removal of hold up sewage from and sludge from rain water harvesting tanks including cleaning of gravel filter, Mesh chamber of Drip irrigation system all as specified and directed by Engineer-in-Charge

M&L for servicing and over hauling of 3 HP Open well submersible pump set including varnishing the stator and replacing the worn out drive end/driven end bearings, greasing, reassembling and testing complete all as directed

Excavation in post holes (or similar holes) each n.exc 0.50 cum getting out in hard/dense soil, returning, filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25cm complete all as specified and directed.

M&L for framed works in posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 including dismantling of old fencing complete all as specified and directed.

Supply and fixing of 3.15 mm dia chain link MS galvanised fencing wire and average size of mesh 100mm x 100 mm including line wires, to ant type of standards rails, straining bolts, etc including provision of binding with mild steel wire annealed not less than 0.9 mm dia complete all as specified and directed

S&F steel work in tubular trusses/pole(unframed) including purlins, rafters and special shaped washers etc complete using ERW or induction butt welded tubes confirming to IS-1161-1979 grade St-240 including painting complete all as specified and directed.

M&L for pre-painted galvalume aluminium zinc coating Gibased corrugated steel 0.50 mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall , fixed with self tapping screws including ridge complete all as specified and directed

omsai thermax engineers