The commercial vehicle frame produced by Jinchi frame mainly adopts

Hello, I would like to ask what structure is mainly used in the commercial vehicle frame produced by Jinchi frame? The commercial vehicle frame produced by Jinchi frame mainly adopts the middle four-beam structure. Based on the design concept of high structural strength, light weight and good bearing capacity, the strength analysis of commercial transportation load is simulated and the structure of the middle four-beam frame is optimized. The finite element strength test and dynamic road test show that the overall strength and bearing capacity of the frame are improved by more than 15% compared with the ordinary keel frame, and the safety factor is higher.