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| 1 | Supply of MS/CS structural steel like ISMC, ISMB, ISA, Chequered plate, MS plate, MS flat, Round bar etc. as per the detail scope of work in Section-V. |
| 2 | Shifting, Fabrication, Erection and painting of structural steel viz. pipe/duct/filter/O2 cylinder supports, etc. as per the detail scope of work in Section-V. |
| 3 | Shifting & Erection of Pipes and pipe fittings, valves/dampers including its cleaning as per the detailed scope of work in Section-V. |
| 4 | Welding of Pipe, Pipe fittings, Valves, Equipment / Components, Material: CS to CS, End connection: SW / FW, Welding process: SMAW as per the detail scope of work in Section-V. |
| 5 | Welding of Pipe, Pipe fittings, Valves, Equipments / Components, Material: CS to CS, End connection: BW / NW, Welding process: SMAW as per the detail scope of work in Section-V. |
| 6 | Welding of Pipe, Pipe fittings, Valves, Equipment / Components, Material: CS to SS, CS to Alloy steel, SS to SS, SS to Alloy steel, Alloy steel to Alloy steel, End connection: SW / FW, Welding process: SMAW as per the detail scope of work in Section-V. |
| 7 | Welding of Pipe, Pipe fittings, Valves, Equipment / Components, Material: CS to SS, CS to Alloy steel, SS to SS, SS to Alloy steel, Alloy steel to Alloy steel, End connection: BW / NW, Welding process: GTAW for root and GTAW / SMAW for subsequent passes as per the detail scope of work in Section-V. |
| 8 | Dye Penetrant Test of weld joints as per the detail scope of work in Section-V. |
| 9 | Erection of scaffolding/staging along with work platform for erection of pipeline/duct and duct support as per drawing. Details of scope of work is mentioned in section-V. |
| 10 | Shifting and installation of combined HEPA charcoal filter as per drawing |
| 11 | Shifting and installation of grilles od different sizes in the duct collar as per drawing |
| 12 | Shifting of centrifugal fans to designated area and its erection as per drawing |
| 13 | Shifting and installation of Oxygen cylinder in designated area as per drawing |
| 14 | Shifting, Fabrication, Erection and painting of structural steel viz. CS collar from CS plate of 3 mm thickness as per drawing and welding it to CS duct,End connection: SW / FW, Welding process: SMAW as per the detail scope of work in Section-V. |
| 15 | Supply and erection of galvanised full threaded rod of 22 mm dia with its nut assembly and coupler that is to be used for providing hanger type support for ducts and pipes. |
| 16 | Supply of fasteners, nuts and washers of 8.8 grade in different sizes as per requirement/drawing. |
| 17 | Supply ofU-bolt support with nut assembly for pipeline of different sizes and its installation as per drawing |
| 18 | For pipepline size of 15 NB |
| 19 | For pipeline size of 25 NB |
| 20 | For pipeline size of 50 NB |
| 21 | For pipeline size of 100 NB |
| 22 | For pipeline size of 150 NB |
| 23 | For pipeline size of 200 NB |
| 24 | For pipeline size of 300 NB |
| 25 | For pipeline size of 400 NB |
| 26 | For pipeline size of 550 NB |
| 27 | Supply of standard SR elbows of 50mm NB of SS 304L. |
| 28 | Supply and erection of 14 Gauge galvanised wire mesh for bird screen protection to cover open duct ends as per the detail scope of work in Section-V. |
| 29 | Supply and installation of In-situ prepared EPDM gasket- (Durameter Hardness Shore-A 65 +/- 5) 3 mm THK. as per the detail scope of work in Section-V. |
| 30 | Installation of post concrete Anchor Fasteners of different sizes. |
| 31 | Anchor Fasteners of Size HSL M12 or equivalent. |
| 32 | Anchor Fasteners of Size HSL M16 or equivalent. |
| 33 | Shifting & erection of ultrasomic decontamination chamber with filteration equipments related piping & structure as per Section-V |
| 34 | Shifting & erection of Laundry equipments inside OESC building as per Section-V |
| 35 | Shifting & erection of Liquid effluent transfer pump inside OESC building, as per Section-V |
| 36 | Shifting & erection of 01 T manual hoist inside OESC Building, as per Section-V |
| 37 | Radiography of weld joints by gamma or X-ray for OESC ventilation and Breathing Air system as per the detail scope of work in Section-V. |
| 38 | Core drilling using diamond drilling equipment in RCC structures like beams, slabs .columns, walls etc. |
| 39 | Upto dia 250 mm |
| 40 | Dia 26 mm to 200 mm |
| 41 | Dia 201 mm to 400 mm |
| 42 | Dia 401 mm to 800 mm |
