Hand to play natural surface stone is what kind of?
Features: Unique resin binder, grinding strength; polishing speed, high finish; wear a high degree of long life; grinding and polishing after the stone without scratches and color left (not easy to dye).
Natural surface refers to the natural formation of stone in the surface, such as slate of the board, granite joints, etc., hand to play the natural surface is the use of artificial way to slate or granite through the "broken" way to deal with the corresponding natural
Water mill selection: size: 50 # 150 # 300 # 500 # 1000 # 2000 # 3000 # (according to coarse grinding or fine grinding arrangements, choose the white as well).
