procurement of spare parts of vapour absorption machine at ntpcvindhyachal and talcher , inhibitor molybdate of vam hvac stg.-ii , hyderobromic acid for vam hvac stg.-ii , double distilled vacuum oil for vam unit , diaphragm valve of vam of hvac stg.-ii , diaphragm top assy of vam hvac stg.-ii , sd40ahe:steam float trap , lithium bromide of vam hvac stg.-ii , octyl alcohal ror vam hvac stage-ii , service valve cap assy.of vam hvac , service valve of vam hvac stg.-ii , sight glass of vam hvac stg.-ii , spare kit of vaccum pump of vam hvac , refrigerant p / p with drive for vam , diaphragm 20 nb for vam of hvac stg.-ii , absorbent / solution pump , vaccum hose for vaccum pump for vamsd40a , vaccum hose for manometer of vam hvac , sight glass for vam , steam trap for vam , 5g 5n h / 6:octyl alcohol , packing for sight glass for vam , octyl alcohol for vam , diaphragms for vam , absorbent receiving pump for vam , vacuum pump for vam , esd 40ah:vacuum hose for vacuum pump , esd30a he / 6:diaphragm valve , lithium hyderoxide , 5g 5n h / 6:service v / v assy , 5g 5n h / 6:glass, toughened , 5g 5n h / 6:packing for sight glass , vacuum pump spares kit for vam , vacuum pump oil , level electrode for vam , lithium bromide for vam , 5g 5n h / 6:assembly of sampling cyl , lithium molybdate , heat exchanger ( lthe cum hthe ) , 5g 5n h / 6:hose- rubber , 5g 5n h / 6:valve diaphragm , 5g 5n h / 6:sampling kit for vam , vaccum hose for manometer of vam hvac , 5g 5n h / 6:vaccum pump oil , 5g 5n h / 6:hyderobromic acid , 5g 5n h / 6:service valve cap assembly , 5g 5n h / 6:diaphragm rubber, for 20 nb dv , 5g 5n h / 6:diaphragm valve 20 nb , 5g 5n h / 6:vaccum pump kit for model , 5g 5n h / 6:vaccum hose for vaccum pump , 5g 5n h / 6:diaph top assly for 20 nb dv => limited