The materials selected for the buckle are generally POM (polyformaldehyde, commonly known as Saigang), PP and NY.
The buckle consists of a male buckle and a female buckle, one end is fixed with a ribbon, the other end can be adjusted by the ribbon, according to different needs and choose the length of the ribbon, generally used for shoulder, waist fixation. In order to play the role of snaps more effectively, production companies are also constantly changing, in reducing weight at the same time, to ensure that the strength does not change, such as v-type buckles. There are such as three-way buckle, that is, "Y" type buckle, often used in strollers, taxi seat belts and other safety products above, of course, according to the different backpacks, there are seam-type buckles, rotating buckles, etc. , in the process can also be authorized on the surface of the mother buckle design color label or LOGO, you can also choose electroplating, silk printing, painting. Depending on the feel of the hand can also be polished, spray rubber oil and so on.
In terms of strength, the 25mm buckle used in the general leisure backpack can withstand a weight of 40-50 kg, of course, a good buckle can reach 80-90 kg. The buckle represents the lobster of duraflex, the full-hollow buckle of ITW-NEXUS, which has dominated for many years.