bids are invited for custom bid for services - mrpl tender 3900002148 service code 1028780 welding of dcu charge heater related tubes of alloy steel sa335 gr p9 as per sow boq and in gem 1 lump sum amount in rs including gst to be quoted , custom bid for services - mrpl tender 3900002148 service code 1028781 cutting dismantling removal of old existing heater tubes and erection of new alloy steel tubes as per sow boq and in gem 1 lump sum amount in rs including gst to be quoted , custom bid for services - mrpl tender 3900002148 service code 1026871 heater skin thermocouple tig welding on any material as per sow boq and in gem 1 lump sum amount in rs including gst to be quoted , custom bid for services - mrpl tender 3900002148 service code 1059151 scaffolding erection for heater jobs using metal scaffolds as per detailed scope of work as per sow boq and in gem 1 lump sum amount in rs including gst to be quoted , custom bid for services - mrpl tender 3900002148 service code 1018905 heater ba33401a b inside tube coil surface cleaning during shutdown as per sow boq and in gem 1 lump sum amount in rs including gst to be quoted