... Density Polyethylene) and moldedin the way of co-extrusion to shape the porous structure, so it has a strong ... cable, Fiber Optic, coaxial, PCM electric cable and so on, widely apply to the telecommunication,radio, railroad, military units, institutions, large ... compressive strength, impact resistance anti-aging andresistant to acid bases. Both cold and hot area can use this pipe.Features:1. ...