本公司研制开发成功的U-PVC双壁波纹管挤出机生产线，由双螺杆挤出机、U-PVC双壁波纹管特制模具、成型机、行星切割机、（扩口机）翻料架组成。
U-PVC double-wall corrugated pipe extrusion line that we successfully developed consists of twin-screw extruder、special forming mould、forming machine、planetary cutting unit and (belling according )piling-up unit.
