supply of supply, installation and commissioning of electrical motorized wind screen wiper assembly.supply, installation and commissioning of electrical motorized wind screen wiper assembly.,supply, installation and commissioning of electrical motorized wind screen wiper assembly complete with wiper motor,wiper arm with blade & pipe connections & w ater spray wind screen washingsystem including connections/tube & fittings complete for wag-9hc locomotives as per plw frss no. plw/ldo/loco/e wiper-002 rev 0 . to drawin g no. 1209-08.130-511, drawing no. 1209-08.130-263 and drawing no. 1209-08.130-019 [ warr anty period: 30 months after the date of delivery ] ]