... wheel with steel core 1.For stone floor grinding, aggressive ! 2.Lasting &fast stripping Turbo Cup Grinding ... wheel with steel coreTurbo Cup Grinding wheel with steel core are mainly used ... Fujian Province.2.Main productsPolishing Pads,Cutting Blade, Core Drill Bits, Diamond Cup wheel, Finger Bits, ... control 3 times by them Turbo Cup Grinding wheel with steel core