... Detailed Product Description ,Feature: pp-r pipe extrusion line1.This single cod extruder for polyolefin, having high extruding velocity and effective plasticization. 2 ... mixing cod specialized for polyolefin. 3.Specially designed three co-extruding die, reasonable channel, smooth outside and inside wall, and ... silicon core tube, ordinary PP-R, PE and PEX pipes. plastic pipe line ,pipe extrusion line