·HDPE silicon core pipes production line is a new product,developed by our company on the base of absorbing and digesting advancedtechnology from the world. HDPE silicon core pipes made by the production line are casing pipes widely used at home and abroad for the protection of light cable and electric cable. ·As a new casing pipe for the protection of light and electric cable, HDPE silicon core pipes are characterized by corrosion-resistance, agereistor little friction coefficient of inner wall,good insulativity,and can be fixed very soon. It has been used in Europe for more than 10 years,and also has been initially used in China. It can be widely userd for the protection of light cable of expressway,post and telecommunications and special networks of military,so make the light and electric cable as pipeline. .