... Soncap,etc 4.Delivery on time Wood Like Tile,Matt Tile, Foshan Tile, Rustic Tile,Floor Tile First choice, grade AAWater absorption:<0.5% ... Center curvature-0.04~+0.04Surface quality A minimum of 95% of the tiles shall be free from visible defects. ... than UB levelUA levelResistance to Chemical of swimming poolNot lower than UB level UA level Wood Like Tile,Matt Tile, Foshan Tile, Rustic Tile,Floor Tile