polished porcelain tile for floor & wall 1)nano finished 2)size: 800x800mm 3)grade AAA, ISO assured 4)factory price Item Model: 8BN001CProcess features: with the 5th generation computerized superfine powder spreadingtechnology, produced by integration of poly multi-color crystalline grains and carefully selected raw materials at super high temperature firing.Grains features: fully vitrificated, ...