NJ250 road milling machine Working Width 250mm 300mm Working Depth 3mm 10mm Weight(kg) 186kg Working Efficiency(m2 ... track plate, resin surface, airport runway, wear-resisting floor above the site or concrete floor were moderate milling, cleaning, picking operations 2 Features1 ... ;5.Mildly nap for concrete, asphalt road, epoxy resin, wear-resisting ground; 6.Remove the old floor surface when the ground ...