Acid resistance brick is a new type of building material. It has strong pressure resistance, corrosion resistance, easy to clean, acid and alkali, and other excellent characteristics.
1, diagonal size. It can detect the surface smoothness.
2, check the flatness. Acid resistant brick color should be uniform, surface finish and flatness is better. Not a concavity, around the edges neat corners can not have defects.
3, to see the water absorption rate. The size of water absorption is an important symbol of the quality of ceramic tile. High water absorption, weak strength.