1, appearance quality mosaic products inspection: brick line for this kind of paving stone that after you need within visual distance of the observed line if substantially uniform size and dimensions from the visual senses are all in line with standard tolerances, such tiling effect is qualified products. If it is found from the visual line in its brick paving after a very significant uneven other conditions, they need to be removed for reprocessing.

If the product is purchased mosaic size itself is problematic, it can ask return. In addition, we can also be judged from the sound in the judgment process, you can use an iron bar and other objects to the striking of this product, if the product is relatively clear voice, it can be judged as non-defective products, if it sounds turbidity and appear dull and rough and raspy sound effects, it can be judged as a defective product.