How often do you need to change the flexible couplers on your concrete grinders? We have a record of 6 years！He needs to replace it now!（From 2015 to present）!......
R430 is a single disc floor grinder that you can quickly convert for edge grinding on both sides.it efficiently grinds adhesives,paint,epoxy and spackle.Designed to facilitate an ergonomic work position,it is easy and convenient to use.The......
