Tender for Providing Of Custom Bid For Services - Repair And Maintenance Of Columns, Vessels, Heat Exchangers, Air Fin Coolers, Reactors, Furnace Pipings And Other Miscellaneous Hot And Cold Jobs During Planned Shutdown Of Avu I,avu Ii,cru, Coker A, Lru And Pct Unit At Bara.. in Begusarai - Bihar

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