... -pressure water, which washes the dust on the road and then takes it way through the drainpipe. ... .6. Three patented Items: Design Paten, Side washing road -device for vehicle and Pneumatic pipe clean device.Options: ... Low & Flat high water flow washing, Noise Barrier washing, Road spray, Right & Left Washing Flowers , Lift Shaft, Snow ... .8 Max Speed (km/h) 90Cab Air conditioner Sprinkler,FLM5121GSS