Adopt three-layer extruding technology, equipped with vacuum forming unit, three-part cooling unit, hauling-off unit, printing unit, winder and so on, high yield( about 10meters per min) This pipe inside are HDPE and silicon, marking line outside, have reached YD/T841-1996standard. The line is mainly used for producing cable. Silicon core pipe has the features of high hardness, high tenacity, corrosion resistance and long life. And it also has extrusion sign so that it is convenient to construct and check circuitry. It is a new cable hose succeed to PVC plant pipe, double-wall corrugated pipe