4 Inch Diamond Polishing Pads for Wet Grinding Dongguan Merrock Industry Co., Ltd. Base Info Manufacturing Process：Hot PressShape：CircleBonding Agent：ResinTrademark：MRKTransport Package：CartonSpecification：4 inchOrigin：China Description Pre：10mm Diamond Polishing Pads for Floor Grinding Next：Fast Drilling Center Fixed Hexagon Diamond Tipped Hollow Core Drill Bit for Granite
