Sesame gray stone is composed by a variety of crystal, the crystal is a mineral composed of sesame gray stone is so natural breathing, in order to better reflect the stone of its value, then it should allow the stone to breathe freely, avoid moisture through the pores of the stone into the stone house. Then seal the stone only make bacterial invasion and prone to various diseases. Sesame white board stock a large number of low-cost treatment to burn as follows: 300 * 600 * 2.5: 37 yuan / square, 300 * 600 * 50: 45 yuan / square. Curb: 800 yuan / cubic Order. Tel: 15836992808 road calculus http://www.nyzfsy.com