bids are invited for supply-ac and ventilation system-air handling unit ahu-140000 cmh , supply-ac and ventilation systemair handling unit ahu-80000 cmh , supply-ac and ventilation system-gss duct sheet -18 g - ventilation system , supply-ac and ventilation system-gss duct sheet -20 g -ventilation system , supply-ac and ventilation system-gss duct sheet -22 g -ventilation system , supply-ac and ventilation system-gss duct sheet -24 g -ventilation system , supply-ac and ventilation system-acoustic insulation , supply-ac and ventilation system-pre filter , supply-ac and ventilation system-fine filter , supply-ac and ventilation system-air intake louver , supply-ac and ventilation system-non return damper , supply-ac and ventilation system-volume control damper , supply-ac and ventilation systemmotorized fire damper , supply-ac and ventilation system-motorized actuator for fire damper , supply-ac and ventilation system-air grill with vcd , supply-ac and ventilation system-gravity damper , supply-ac and ventilation system-motorized pressure relief damper , supply-ac and ventilation system-motorized actuator for pressure relief damper , supply-ac and ventilation system-axial flow exhaust fans with flp motor -2000 cmh , supply-ac and ventilation system-propeller exhaust air fans -1500 cmh , supply-ac and ventilation system-propeller exhaust air fans -1000 cmh , supply-ac and ventilation system-mcc cum power distribution board , supply-ac and ventilation system-structure steel duct support , etc-air handling unit-ahu-140000 cmh , etc-air handling unit-ahu-80000 cmh , etc-gss duct sheet - 18 g -ventilation system , etc-gss duct sheet -20 g - ventilation system , etc-gss duct sheet -22 g - ventilation system , etc-gss duct sheet -24 g - ventilation system , etc-acoustic insulation , etcpre filter , etc-fine filter , etc-air intake louver , etc-non return damper , etc-volume control damper , etc-motorized fire damper , etc- motorized actuator for fire damper , etc-supply air grill with vcd , etc-gravity damper , etc-motorized pressure relief damper , etc-motorized actuator for pressure relief damper , etc-axial flow exhaust fans with flp motor -2000 cmh , etc-propeller exhaust air fans -1500 cmh , etc-propeller exhaust air fans -1000 cmh , etc-mcc cum power distribution board , etc-structure steel duct support , etccable laying alongwith accessories total quantity : 2898