supply of brushless dc (bldc) swiveling type sensor less railway carriage fanbrushless dc (bldc) swiveling type sensor less railway carriage fan,brushless dc (bldc) swiveling type sensor less railway carriage fan 400 mm sweep 110v d c swiveling type ms stand and ms gumble ring as per is: 6680-1992, & conforming to rdso specification no. rdso / pe / spec / tl / 0021-2005 rev.3 with amendment no. 1 or latest, str no: rdso_pe_str_tl_00 16-2005, rev-0 & frp blade shall be as per drg. no. rdso / pe / sk / tl / 0108 -2008 (alt. 1) or latest. the guard shall be conforming to drg. no. icf/sk-7-6-158 coll-ll alt. g or latest (ms). [ warranty period: 30 m onths after the date of delivery ] ]