supply of supply of electrically operated lifting barrier set as per specification rdso/spn/2018/2012 to work on 24 v dc and hand generatorsupply of electrically operated lifting barrier set as per specification rdso/spn/2018/2012 to work on 24 v dc and hand generator,supply of electrically operated lifting barrier set as per specification rdso/spn/2018/20 12 to work on 24 v dc and hand generator back up with 32 feet long gi boom each set consisting of 2 nos. of lifting barrier ,hand crank,2 electronic motors,2 set of booms,2 stop board room, m.s counterw eights and 2 nos. of boom support with boom motorized locking along with hand generator to operate 2 barrier of one set hand generator to have necessary switch/buttons to operate one or both barrier o perate boom locks only or operate with push in case 24 v dc supply is available (used in gaga station ) [ warranty period: 30 months after the date of delivery ] ]