What plastic does the buckle usually use?
POM surface friction is small, if not a special brand, the price is much lower than PA66, but long-term production will be corrosion on the mold, so if the amount of large, it is best to use a little more die steel.
The most used are PA66 and POM two, PA66 mechanical performance better, but sometimes need wet conditioning, the price is also more expensive;
In addition to the above requirements, there are wear-resistant, fatigue and creep resistance is also the focus of consideration, the general choice of POM, nylon and so on
