procurement of different disc and seat related to dry ash system for day to day running maintenance under ahpmm,stg-i,sgtpp,wbpdcl. , procurement of different disc and seat related to dry ash system for day to day running maintenance under ahpmm,stg-i,sgtpp,wbpdcl. , gate disc,12inx6in diffuser intake vv #1.0 gate disc for 12 x 6 fly ash diffuser intake valve for nuvafeeder,part no 1, drg 25p06-t-1b-032# for nuvafeeder drg 25p06 -t-1b-032 sgtpp1 ( moc-high crome,cr: 24% to 27%,mo:1.5%(max),hardness 450-500 bhn(heat treated),grinded & lapped dimension:as per sample ) , gate seat,12inx6in diffuser intake vv #2.0 gate seat for 12 x 6 fly ash diffuser intake valve for nuvafeeder,part no 2, drg 25p06-t-1b-032# for nuvafeeder drg 25p06 -t-1b-032 sgtpp1 ( moc-high crome,cr: 24% to 27%,mo:1.5%(max),hardness 450-500 bhn(heat treated),grinded & lapped dimension:as per sample ) , valve disc,2.5 vent valve # dcips for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, moc: c-20,is 1875 with ceram ic face.size 2-1/2 as per drawing no-25p06-1b-t-121 ( moc: high chrome alloy c.i. hardness: 450-500 bhn dimension:as per sample ) , valve seat,2.5 vent valve # dcips for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, for vent/equalising valve sgtpp1, moc: c-20,is 1875 with ceram ic face.size 2-1/2 as per drawing no-25p06-1b-t-121 ( moc: high chrome alloy c.i hardness: 450-500 bhn dimension:as per sample ) , disc for 12 swing disc gate # part no. 5 disc (part no.5) for 12 swing disc gate of transfer hopper as per drg no.28p03-1b-t-210 ( moc:ar 400,hardness 400-500 bhn dimension:as per sample ) , seat for 12 swing disc gate # part no. 4 seat (part no.4) for 12 swing disc gate of transfer hopper as per drg no.28p03-1b-t-210 ( moc: durite bhn:450-500 as per dcips drg.25p06-t-1b-032 dimension:as per sample ) , gate disc,12x6 diffuser intake vv for diffuser intake valve sgtpp dcips moc: durite bhn:450-500 as per