Mechanical Works Process Utilities and EquipmentManufacturing and ConveyingCost and Time EstimatesHVAC (Heat, Ventilation, and Air Conditioning)Design and Cost EstimatesDucting : Fabrication and InstallationRepairs and Rehabilitation (chemical cleaning of coils, re‐insulation works, etc.)Piping System : chilled water and refrigerant systemExhaust systemSupply and Installation of centralized A/C systemSteel Fabrication (welding)Generator Set MaintenancePiping and mechanical equipment design