Tender For bid to ras corrigendum : supply of isom dih project heat exchangers : : - 1 103 e 4003 dih hexane bottom reboiler design procurement supply of all materials fabrication assembly at shop ndt sr surface preparation primer , 2 103 e 4004 a b dih hexane bottom reboiler design procurement supply of all materials fabrication assembly at shop ndt sr surface preparation primer application statutory compliances , 3 103 e 4003 dih hexane bottom reboiler design procurement supply of all materials fabrication assembly at shop ndt sr surface preparation primer , 4 103 e 4004 a b dih hexane bottom reboiler design procurement supply of all materials fabrication assembly at shop ndt sr surface preparation primer application statutory compliances , 5 103 e 4003 dih hexane bottom reboiler design procurement supply of all materials fabrication assembly at shop ndt sr surface preparation primer