Qualified ceramic tiles are generally packed in cartons (while defective products and processed products are generally not packed in cartons, but fixed directly with foam and rope), and the manufacturer's name, product name, trademark, specification, size, grade, weight, color number and quantity should be printed on the packaging box.

No obvious defects in appearance

According to the national standard, the surface quality of the superior product should be at least 95% without obvious defects when viewed vertically from 0.8 meters away. Of course, according to this standard, most products can meet the standard, but we mainly don't look at 95%, but want to have no obvious defects. Check several tiles randomly from the box to see if there are any defects on the surface of the product: ripples, spots, glaze bubbles, bumps, cracks, lack of glaze, etc.

Clear identification

There is a tile trademark on the back of each tile. See if the bottom label matches. Adhesive accessories are not allowed on the back and side.