NJ250 road milling machine Working Width 250mm 300mm Working Depth 3mm 10mm Weight(kg) 186kg Working Efficiency(m2/h) 260 1 NJ250 road milling machine usage:To remove the ground coating, paint, a variety of road marking; on the highway, high-speed railway box girder bridge deck, the track plate, resin surface, airport runway, wear-resisting floor above the site or concrete floor were moderate ...