The inner layer of the bi-color cross helically wound steel wires reinforced-polyethylene composite pipe(UHMWPE Mining pipe、UHMWPE Dredge Pipe、UHMWPE Roller Pipe) is made of polyethylene plastic and in the color of slight transparent milky white. Different from some manufacturers who use recycled plastic with unknown sources as raw materials, we select high-quality HDPE (high-density polyethylene) and provide visible quality assurance, ensuring service life and sanitary safety of drinking water.