Chongqing Hutong Pipeline Technology Equipment Co., Ltd. is a professional large-diameter PVC-U winding pipe and technical equipment manufacturing enterprise integrating R&D, production and service. On the basis of fully absorbing domestic and foreign pipeline production technology, it has successfully developed "DN300-3000mm diameter PVC-U winding pipe production technology and production equipment" and "DN600-2600mm diameter mechanical spiral winding pipe non-excavation water repair pipe". It has obtained many national patents, and its products meet national standards. It has been promoted and used in many provinces and cities such as Chongqing, Hubei, Fujian, Guangdong, Shandong, Henan, and Hebei, and has achieved good social and economic benefits.
    The mechanical spiral winding pipe non-excavation water repair process is to place the spiral winding machine in the original pipeline well room, and spirally wind the special PVC p....