The material of PE double wall bellows is light and its wall thickness is 1/2-1/3 of planomural pipes.Its linear density is lower by 40-50% than that of the same specification planomural pipes.

• 管材质轻，其壁厚为平壁管的1/2-1/3，线密度比同规格的平壁管低40-50%25，可降低成本；