Edit cobblestone species use products: natural color mechanism pebble, river gravel, dry Nien, stencilled stone, stone, landscaping stone, petrified wood, culture stone, natural color marble rice and other decorative building materials and interior decorative Advanced staining sand, non-toxic, tasteless, non-marking. Quality of hard, sharp color quaint, with compression, wear resistant properties of natural stone, is an ideal green building materials. Photos cobblestone uses: cobblestones are widely used in public buildings, villas, garden architecture, paved roads, parks rockery, bonsai filling materials, garden art and other high-level superstructure. Carry forward the ancient oriental culture, but also reflects the Western classical, elegant, artistic style of getting back to basics. Pebbles also water, sewage treatment, electricity, garden items of projects to provide high-quality materials. Also ceramics, precision casting, paper, sprayed grinding, chemicals, silicon, national defense, such as raw and auxiliary materials. Nanjing stone of physical parameters: Material: 95% silica (SiO2) performance parameters: surface finish 98%, compressive strength 600 K