Tender For corrigendum : providing of maintenance and pigging service for oil and gas pipelines - servicing of oxygen fully automatic control panel; servicing of oxygen fully automatic control panel; servicing of oxygen fully automatic control panel,maintenance and pigging service for oil and gas pipelines - servicing of oxygen semi automatic control panel; servicing of oxygen semi automatic control panel; servicing of oxygen semi automatic control panel,maintenance and pigging service for oil and gas pipelines - servicing of co2 semi automatic control panel; servicing of co2 semi automatic control panel; servicing of co2 semi automatic control panel,maintenance and pigging service for oil and gas pipelines - manifold nrv replacement; manifold nrv replacement; manifold nrv replacement,maintenance and pigging service for oil and gas pipelines - servicing of manifold regulators; servicing of manifold regulators; servicing of manifold regulators,maintenance and pigging service for oil and gas pipelines - servicing of air compressor; servicing of a
Tender For corrigendum : providing of operation and maintenance of other machines and plants - omprehensive annual maintenance & operation of medical gas plants and associated pipe line systems and outlet points of oxygen, compressor air, vacuum, coz and nitrous oxide etc. of different departments/bulldings