AS Petro Tech & Maintenance Services Successfully Delivering Projects in Pakistan, Established in 2018. The Company Offers Civil, Mechanical, Electrical, Instrument, Engineering & Maintenance Services in Oil & Gas, Drilling & LPG Filling Plant Sectors. The Management of AS Petrotech & Maintenance Services has vast experience in the Field of Maintenance & Engineering. AS Petrotech have qualified foreign experience engineers, Electrical Mechanical, Instrumentation, Fabricator, Welder & Field Technicians. AS Petrotech has successfully completed Project Of Kohsar, ENERGY PVT LTD CITIZEN GAS PVT LTD UNITED GAS PVT LTD CHANAB GAS (PVT) LTD In Kohala Murree.