High Alumina Porcelain Polishing Stones "Equilateral Triangle" 10mm (White, green, coffee) Proportion 2.7

China High Alumina Porcelain Polishing Stones "Equilateral Triangle" 10mm (White, green, coffee) Proportion 2.7, Find details about China Ceramic Polishing Stone, Ceramic Grinding Stones from High Alumina Porcelain Polishing Stones "Equilateral Triangle" 10mm (White, green, coffee) Proportion 2.7