supply of procurement of spares for track machines , roller, as per plasser part no. ud313.1000iiisp1668/1676, make- plasser or its equivale nt ] , lining roller assy with pin as per plasser part no. 2e150.23as with specification en19 forge d steel, make : plasser or its equivalent ] , lining roller sub assembly as per plasser part no. ud313.2700-ivsp.1668/1676, make- plasser or its equivalent ] , roller as per plasser part no. ud80.4452 with rdso specification tm/hm/6/441 and drg r dso/tm/01/20, make- plasser or its equivalent ] , roller, as per plasser part no;ud80.304, make: plasser or its equivalent ] , roller as per plasser part no. su127.21.4.1.6b and rdso specification tm/hm/6/62 ; mak e : plasser or its equivalent. ] , roller complete as per plasser part no 64.10.4000.11 ,make-plasser or its equivalent. ]