supply of dredger drum disc/gear out of en-24 mate [dredger drum disc/gear out of en-24 material of hardness 400 bhn for bcm machine. equivalent to plasser part no.: 61.04.519 , as per rdso drawing no.: rdso/tm/13/21 and rdso specification no.: tm/hm/6/498, part make: plasser or equivalent. ] , dredger drum disc/gear out of en-24 material of hardness 400 bhn for bcm machine. e quivalent to plasser part no.: 61.04.519 , as per rdso drawing no.: rdso/tm/13/21 and rdso specificati on no.: tm/hm/6/498, part make: plasser or equivalent. [ warranty period: 12 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]