Waterproof 600x1200mm high-quality glossy tiles are typically porcelain or glazed ceramic, known for their low water absorption, scratch resistance, and suitability for various indoor/commercial spaces like living rooms, kitchens, and hotels, with options in marble, stone, or deluxe designs, though a glossy finish can be slippery, so consider anti-slip variants or use in drier areas. Key features to look for are low water absorption (under 0.5% is excellent), high PEI ratings for durability, and quality manufacturing (like ISO9001) for a lasting, easy-to-clean surface.