supply of column internals for modified column design, engineering, manufacturing, inspection ,packing and forwarding, transportation to site and providing the complete equipment with all accessories and mandatory and erection and commissioning spares and other details as per requisition. , atmospheric distillation column (refer annexure – 1 and pds for detailed scope) , vacuum distillation column (refer annexure – 1 and pds for detailed scope) , lt kero/ht kero/lgo/hgo stripper (refer annexure – 1 and pds for detailed scope) , pwd / hwd stripper (refer annexure – 1 and pds for detailed scope) , primary fractionator column (refer annexure – 1 and pds for detailed scope) => limited