PVC electrical pipe extrusion line: 1.extrusion capacity:50-500 kg/h, 2.stable ruuning 3.1year ... guarantee,life long service PVC electrical pipe extrusion line:Detailed Information:equipped with relative extruding dies and assistant ... , can make various conduits.Outstanding features of PVC conduits pipe extrusion machine:1 extruder: adopting conical twin-screw extruder, unique designed ...