· Preparing Fabrication/Maintenance/Inspection/As-Built Drawings. · Preparation of Piping Isometrics and Equipment Drawings · Preparation of HVAC & Piping Drawings · Preparation of Piping General Arrangement Drawing and equipment layout. · Preparation and Checking of GA, BOM and Bulk MTO. · Engineering Calculations Such as Pipe Sizing, Pipe Wall thickness, pipe rack width & Pressure Drop in the piping system.