Tender For corrigendum : supply of 1a ballast pump with priming unit spacer coupling with spares o-ring tool kit fixing mechanicalshaftsealmechanicalshaftseal, 1b ballast pump with spacer coupling with spares like o ring tool kit fixing mechanicalshaftsealmechanicalshaftseal, 1c seawater ballast pump with spacer coupling with spares like o ring tool kit fixing mechanicalshaftsealmechanicalshaftseal, 2a technical support by deploying relevant engineer or technical manpower during installation, testing and commissioning of ballast pumps with electrical motors at site for item bp3, bp 4 and item bp 5, bp 6, 2b technical support by deploying relevant engineer or technical manpower during installation, testing and commissioning of ballast pumps with electrical motor at site for item bp 1, bp 2, delivery