Due to the large size of the mattress, transportation costs will be very high. In order to save costs, we generally choose to compress the package (as shown in the video) greatly increase the number of pieces that loading in the container to save costs for clients. Recently some retail stores also used such a transportation method. This method has extremely high quality requirement for springs. The lack of endurance of coils will lead to the mattress can not be rebound after decompression . Our company was originally an automobile spring company and the elasticity required for automobile springs is 80 times that of mattress springs. We can proudly say that we are the best in this field!