| sl no | Descriptions |
| 1 | Mechanical Fabrication, erection job of piping, structure, tank, equipments or vessels in oil refineries and petrochemical plants. |
| 2 | Mechanical maintenance, shutdown and time bound jobs of Static equipments like, A- Heat Exchangers. B- Column towers. C- Filters. D- Vessels. E- Boilers. F- Cooler / Condensers. G- Reactors. H- Heaters I- Tanks, etc. |
| 3 | Catalyst loading & unloading in all types of Reactors in oil refineries and petrochemical plants. |
| 4 | Overhauling and repair of static equipments A- Heat Exchangers. B- Column towers. C- Filters. D- Vessels. E- Boilers. F- Cooler / Condensers. G- Reactors. H- Heaters I- Tanks, etc. |
| 5 | Work contract of replacement of mixer rotor in oil refineries and petrochemicals. |
| 6 | Maintenance / Cleaning / Inspection of boilers in oil refineries and petrochemicals. |
| 7 | Overhauling and repair of Rotary equipments A- Pumps. B- Compressors. C- Centrifuge. D- Dryer. E- Mixture. F- Agitators. |