purchase of set of commutating pole assiy., set of commutating pole assly for traction motor type hitachi 15250a. each set consists of four items in 06 nos. 1 ] commutating pole assly ( s pole ) as per rdso str no. rdso / 2007 / el / str / 023 rev.1 and drg. no. 10 s 808 417. rev.-d, clw specn no.4tms.095.033 alt-4 , qty / set - 01 no. 2 ] commutating pole assly ( s pole ) as per rdso str no.rdso / 2007 / el / str / 023 rev.1, clw drg. no. 10 s 808 416. rev -d , clw specn no.4tms.095.033 alt-4, qty / set - 02 nos 3 ] commutating pole assly. ( n pole ) as per rdso str no. rdso / 2007 / el / str / 023 rev.1 and drg. no. 10 s 808 419 rev.-d, clw specn no.4tms.095.033 alt-4, qty. per set - 01 no 4 ] commutating pole assly. ( n pole ) as per rdso str no.rdso / 2007 / el / str / 023 rev.1 and drg. no. 10s 808 418 - rev-d and clw specn no. 4tms.095.033 alt-4. qty / set- 02 nos. [ warranty period: 30 months after the date of delivery ]