Steel Belt Reinforced Polyethylene (PE) Helical Bellows

The is a kind of winding structure wall composed of high-density polyethylene (HDPE) as the matrix (inner and outer layers) and the surface coated with adhesive resin steel tape. The wall structure consists of three layers: the inner layer is a PE inner tube with continuous solid-wall, and the outer tube is wrapped with a ring-shaped corrugated steel belt (U-shaped steel plate) reinforced with corrugated steel strips,