... width:450-1200 mm 4 Working speed:2.5- 2012 New Designed Roll Grooving Machine:This product is an indispensable tool for ... slip method which uses plastic brush, broom, napping machine.After grooved by this machine,the road surface is slip-proof, durable, ... width3-8 mmWorking speed2.5-3 m/minPower7.5 kwWeight340 kgDimension1450×820×1020mmMart Industry,6 Year's Reliable Machine SupplierWe Can Go Much ...