4" Diamond Polishing Pads for Floor Polisher Dongguan Merrock Industry Co., Ltd. Base Info Manufacturing Process：Hot PressShape：CircleBonding Agent：ResinTrademark：MRKTransport Package：CartonSpecification：4 inchOrigin：China Description Pre：Resin Bond Diamond Grinding Wheel for Thermal Spraying Coating Next：4" Diamond Polishing Tool for Wet Grinding
