Ceramic tile, also known as ceramic tile, is a kind of acid and alkali resistant ceramic or stone for building or decoration. It is made of refractory metal oxide and semi-metal oxide through grinding, mixing, pressing, glazing and sintering. It is called a tile. Its raw materials are mostly mixed with clay and quartz sand.

Standard; National classification standard: the water absorption rate of porcelain brick is less than or equal to 0.5%; The water absorption of stoneware is greater than 0.5% and less than or equal to 3%; The water absorption of the stoneware is greater than 3% and less than or equal to 6%; The water absorption of stoneware brick is more than 6% and less than or equal to10%; The water absorption of ceramic tiles is more than 65438 00%. Performance of water absorption: ceramic tiles >; 10%≥ stoneware brick >: 6%≥ fine stoneware > 3%≥ stoneware > 0.5%≥ porcelain brick. The water absorption of 0.5%- 10% is summarized as semi-porcelain.