1.porcelain tiles. 2. polished tiles Canton Development focuses on polished tiles, including soluble salts, double loading, super white, double loading with crystal, vertical loading, black tiles and new products. 3. technical methods. water absorptions: <0.5% bending: <0.5mm(for 600x600mm) sizes tolerance: within 0.3mm 4. there is a professional inspection team for quality control. the clinets would be free from quality complains.