Crystal Stone 1. Polished surface 2. Environment-friendly, Anti-ultraviolet 3. High quality and low price 4. Fast delivery Crystal StoneFeature:1. ... to clean, maintenance free) and long service life. Material Crystal Stone Thickness 10 mm, 15 mm, 20 mm, 30 mm ... us know immediately if you are interested in our crystal stones. Crystal stone from the unsaturated polyester resin, the main component of ...