supply of procurement of spares for track machinesprocurement of spares for track machines,roller, as per plasser part no. ud313.1000iiisp1668/1676, make- plasser or its equivale nt ] , roller clamp complete as per plasser part no. ud313.1300-v, make- plasser or its equi valent ] , lining roller sub assembly as per plasser part no. ud313.2700-ivsp.1668/1676, make- plasser or its equivalent ] , roller complete as per plasser part no. ud236.8300i , make- plasser or its equivalent ] , roller as per plasser part no. ud313.1061a, make- plasser or its equivalent ] , roller complete as per plasser part no 64.10.4000.11 ,make-plasser or its equivalent. ]