By natural weathering and wear prone to the phenomenon, its performance characteristics as mica off. At this point there is a small stone surface pitting recessed appear when pitting growing granite surface brightness drop, lose their luster, hand concavity touch, using stone renovation to restore luster. Because granite hard, so the simple use of the surface chemistry classes damaged curing agent, abrasives and other conservation is difficult to achieve the desired effect, the use of stone renovation agent by physical grinding methods, which is better than the simple use of chemical products for renovation Grinding . Granite renovation necessary equipment, accessories and supplies: stone renovation agent, a full renovation of pieces of granite, 17-inch red polishing pads, suction machines, signs, watering can, metering instrument, glass blowing washing, wiping, and a bucket of water.