procurement of butterfly valves of various sizes for ntpc ramagundam and procurement of butterfly valves of various sizes for ntpc ramagundam andkudigi , check valve:sw end a182 f22:1500:50mm , nrv1/lift type / c2500 / f22/sw ) , b-fly v/v:mo-flang:pn-10 , bsen 593:200nb , wafer type butterfly v/v 40nb , is:13095 , b-fly v/v:man-wafr:pn10 , a351 cf8m:50 nb , bfv size:65mm , pn10 , matl:ccs for stg2 , b-fly v/v:man-wafr:pn10 , a351 , cf8m:80nb , b-fly v/v: man-wfr , pn10 , a351 , cf8m , 100nb , b-fly v/v:man-wafr:pn10 , a351 cf8m:125nb , b-fly v/v: man-wfr , pn10 , a351 , cf8m , 150nb , b-fly v/v:man-wafr:pn5 . 0 , a351 cf8m:200nb , 250nb manual wafer type b . f . v with g . b , 300 nb wafer type butterfly valve , bf vlv is:13095 flgd pn10 sg-iron 50mm , bf vlv is:13095 flgd pn10 sg iron 65mm , manual b/f v/v c . s wafer pn-1 . 0 80nb , bf vlv is:13095 flgd pn10 sg iron 150mm , manual b/f v/v c . s wafer pn-1 . 0 200nb , bf vlv is:13095 flgd pn10 sg iron 300mm , manual b/f v/v c . s wafer pn-1 . 0 250nb