Causes of poor product quality of brick

Brick products what causes poor quality? Bona your analysis is as follows:
equipment: equipment purchased by the users themselves is poor-quality products, no ability to ordinary brick. It is often said that a price for. So you want to buy to buy equipment. A block device is a rotary machine, used in the production of standard solid brick, as mentioned earlier must use the standard brick block rotary machine, but we'll see what the manufacturers producing devices.
Some turntable in the market might as well mobile brick making machine, brick quality is low, pressure equipment does not meet the stated pressure requirements. The material without compliance, nor does it play the role of wear-resistant. Another device is the brick paving machines, block machine is not only small and medium in the market cannot make a standard solid brick, couldn't be done even the Hollow bricks, not to mention the quality.
Analysis: If a user purchases a device does not have quality problems, brick quality problems are to be found, that is the raw material used and the proportion of problem.