Application: This line is widely used in producing HDPE water / gas supply pipes and double-anti pipes for coal-mining industries. Features: HDPE pipe extrusion line , widely applicable for speedy extrusion of HDPE and PP pipes, is newly-developed by us through absorbing newest Eurothern technology , , and it features beautiful apperance , high automation degree and stable extrusion. High efficieny single screw extruder with special seperating structrue; grooved feeding bush for barrel with forced water cooling ; newly-designed spiral diffluence co-extrusion die ensuring convenient adjustment and even extrusion ; unique grooved technics and cold water cooling for calibrator guaranteeing the moulding exactness .