Repair And Maintenance Of Plant Systemsequipments - Refinery And etrochemicals; Mrpl Tender No 3300010845 And Service Code 1022587 For Dcu Heat Exchanger Overhauling As Per Sow And Section G And In Gem Overall Total Lump Sum Rate To Be Quoted Cons.. Repair And Maintenance Of Plant Systemsequipments - Refinery And Petrochemicals; Service Code 1022588 For Dcu Air Cooled Exchanger Overhauling As Per Sow And Section G And In Gem Overall Total Lump Sum Rate To Be Quoted Considering 1900 Nos Of Tube..