bids are invited for pco control unit with field bus expansion card for 110 tr chilling plan , pco control unit with field bus expansion card for 60 tr chilling plan , expansion control board for 110 tr ac plant , expansion control board for 60 tr ac plant , pvc insulated single core copper cable 16 sqmm , pvc insulated single core copper cable 10 sqmm , rubber insulating mat 25 mm thick and 2meter x 1 meter , digital type multifunction meter , digital type ammeter , hot dipped gi cable tray of size 300 x 50 mm thickness 2 mm , hot dipped gi cable tray of size 150 x 50 mm thickness 2 mm , refrigerernt gas r 22 r 134a r 410a , xlpe cable aluminium armoured 185 sqmm 3 point 5 core , pvc insulated copper cable single core and multi core circular sheathed with rigid conductor (v2) isi marked to is 694 (q2) total quantity : 596