The precondition of the PE-RT pipe high-speed extrusion line is extruder. Different from normal HDPE raw material, the molecular weight of PE-RT distribute more narrow, this make the design for extrusion processing parts of the PE-RT line is different from HDPE. Therefore, the specialists meticulously reform the extrusion processing parts of the HDPE pipe production line and achieve to extrude PE-RT pipe with high speed and insure the high quality of the pipe.