1, how to distinguish the quality of ceramic tiles-mainly depends on whether there are black spots, bubbles, pinholes, cracks, scratches, stains, missing corners, roundness, etc. Looking at the trademark logo of the bottom embryo, the bottom embryo of the products produced by regular manufacturers has a clear product trademark logo. 2. How to distinguish the quality of tiles is the weight of tiles. Try tiles. Bricks with high density feel heavier, whereas bricks with poor quality feel lighter. [Home Xianghe Decoration (official account of WeChat: jjxhzs)] 3. How to tell whether a tile is good or bad-by tapping a tile, you can tell whether a tile is good or bad by tapping the sound you hear. 1 The tapping method of wall tiles or small-sized tiles is generally to separate the fingers, lift the tiles with one hand and tap the tiles with the other. If the quality of tiles is better. For larger tiles, lift one side of the tile with one hand, and then pat the middle of the tile with the upper part of the palm of the other hand. If the sound is rich and the echo is long, the tile has high magnetization, strong wear resistance and high flexural strength. If the sound is turbid and there is no echo, the degree of magnetization is low and the wear resistance is poor.