Tender For corrigendum : providing of custom bid for services - item no 1 annual maintenance contract for chromatec make gas chromatographs model no cry 2000 gc refer boq qty 16 no,custom bid for services - item no 2 annual maintenance contract for chromatec make dissolved gas analyzer model no cry 2000 dga refer boq qty 2 no,custom bid for services - item no 3 annual maintenance contract for chromatec make dissolved gas analyzer model no cry 5000 dga refer boq qty 2 no,custom bid for services - item no 4 emergency break down maintenance visit of chromatec make gas chromatograph refer boq qty 2 no