1. Choose different consumer groups.
Wonderful buckle spring: mostly used for high-grade Shu Da mattress.
Bonnier: It is basically used on low-end mattresses, because Bonnier and independent pocket springs are popular in the market because of their low cost and simple technology.
2. Different structures of springs lead to different masses. The reason for this is the following：
Bonnier springs: rows of single springs are connected by transverse steel wires, so the contact range between steel wires and springs is large, and there is a risk of abnormal sound and spring seizure when the mattress moves.
Cleverly buckle the spring: form a Z shape with two triangles. First, the triangle pattern is stable, and there are few contact points between the Z-shaped spring and the steel wire, so there is no risk of abnormal sound and spring seizure.
Shu Da patent wonderful buckle spring:
It is also a big selling point for them to spend a lot of money to get the patent right to use Miaokouquan from Pai Company. Miaoerkou is a continuous spring support system. The spring of the whole bed is penetrated by a steel wire from beginning to end. The surface of the spring is supported by a Z-shape, forming an inverted triangle facade. Its biggest feature is its strong stability, and it is not easy to form local collapse and hard sleep.
Bonnier spring:
It's just that Bonnier Spring is the main spring of many low-end markets and brands because of its low cost and low process complexity. The upper and lower ends have large caliber, small middle diameter and small middle section. The service life is not low, but one of the main problems is that it is easy to jam the spring and produce abnormal sound. I'll give you a theoretical comparison.