Among the builders of the plastic track, some builders cut corners of the runway and laid down inferior plastic runways, and suggested a few suggestions on plastic track acceptance criteria;
First, the entire appearance is free of cracks or delamination. If the appearance is cracked or layered, then the runway is unqualified.
Second, the entire runway is not pitted. If there is a pit, it means that this plastic track is very likely to simply lay a thin layer of plastic. Why is it very possible, because it may not be when laying? The ground is cleaned up, and if the ground is not cleaned, the runway will wear out over time. In addition, if the plastic track is pitted, it is very likely that a fall will occur and cause injury.
Third, the color of the entire runway should be uniform and long-lasting. The color of the plastic track can be varied. If the color is uneven, it will indicate that the runway is unqualified during the production process. If it is qualified, how can color occur? The phenomenon of uneven distribution. In addition, this color lasts for the same reason. If the color lasts, the quality of the runway is good enough. Whether it is long-lasting or long-lasting, the color is still so long enough to be compliant.
Fourth, the entire runway marking line should be clear, because this marking line is an important point of the game, is the most important point to judge whether the athlete has a foul. And the runway can't be reflective, because the plastic track has color and color. If there is reflection, it will cause great damage to the athlete's eyes when there is a big sun. The damage of the eyes is more than the damage of the fall. Big.