The most important evaluation point of nylon tie is its release force, which is applied to a certain strength, no matter it is broken, or anti-tooth, head crack, how to break must be above the nominal value of pulling force, that is, the pulling force of nylon tie should be sufficient, the tension requirements of each specification have specified requirements. 

In addition, we should pay attention to the appearance quality. 

Common plastic products will have defective products such as defective edges, lack of materials, anxiety, silver wire, air bubbles, deformation, shrinkage and so on. 

These are also easier to show on nylon tie products, so you have to look at their appearance in detail. although some of them do not affect the use, they still cause potential threats to quality accidents. 

It is worth emphasizing that the key part of the nylon tie belt is the quality of the tooth belt and the tooth cavity of the head, which is very critical, so the tooth belt part should be carefully observed, and the phenomenon of residual teeth should not appear. There should be no step-like mold deviation marks at the top of the inner surface of the tooth cavity part, otherwise, there will be a large number of unusable sliding teeth, which are difficult to insert, which are almost equivalent to waste products and cannot be used.