1.Nano finish(super glossy) or normal surface; 2.Size 50x50cm; 3.Water asorption:<=0.3% 4.ISO13006. Size: 50x50cm;First choice,grade AAA;Water absorption:<=0.3%. Test itemGB/T4100.1-2010Test resultLength tolerenceLength599.7~600.0Side straight ±0.2-0.04~ +0.05Right angle ±0.2-0.05~ +0.04Surface Flatness Center curvature-0.04~+0.04Surface quality A minimum of 95% of the tiles shall be free from ...