... Non dust operation 4,Chip away concrete,asphalt,epoxy surface planer Scarifier, also called floor milling machine,or floor ... or heavy milling, grooving walkways to slip resistant, and making uneven surface. The machine rotates with blunt or flat TCT ... , Grooving floor for slip resistance;6, Floor clean and preparation;Parameter ModelHWS190HWS200HWS255Working Width190 mm200 mm255 mmWorking Depth3 mm6 ...