ceramic tile
Shower Light Fixture,Modern Bathroom Lighting,Led Shower Light,Bathroom Ceiling Light NINGBO EASTKEY ILLUMINATE APPLIANCE CO.,LTD , https://www.eastkeylighting.comThe higher the density of the tiles, the higher the hardness and the better the quality. Tap the tiles, if the sound is clear, sweet is a good tile, but the sound is dull, stagnation is not good. Tap on this tile, and the Purchasing Guide tapped the tile from the side to hear the sound crisp. It was a high density product, and the quality of the dull tiles was a little lower.