Because natural sesame white stone easily corroded and can not be recycled, because the stone susceptible to external factors, such as climate temperature, water erosion, with some body contact and other pollutants. Stone corrosive acidic body is the most important factor, because of pollution, pollutant formation of acid rain on the stone great harm. Therefore, to prolong the life of the stone would take care of the stone. A large number of burning white sesame board low-cost treatment: 300 * 600 * 2.5: 36 yuan / square, 300 * 600 * 50: 45 yuan / square. Curb: 800 yuan / cubic Order. Phone: 15836992808 road calculus http://www.nyzfsy.com