Shandong Dingsu Machinery technology Co., Ltd. is located in Weifang City, Shandong Province. Dingsu tech newly developed high speed double wall cirrugated pipe production line is a new generation of horizontal pressure water-cooled machine that was independently researched and developed on the basis of fully utilizing advanced technology from both domestic and foreign companies and customer feedback.There are many types of ectruers to choose which can produce HDPE,PP and PVC DWC pipes, as well as single wall corrugated pipe production.Our main products areHDPE/PP HIGH SPEED DWC PIPE PRODUCTION LINE ID 100-ID 1600HDPE/PP NEW TYPE SUPER HIGH SPEED DWC PIPE PRODUCTION LINE OD40-OD180SBG315 DWC PIPE PRODUCTION LINE ID 100-ID 250HDPE/PP/PVC ID 175-ID 800 DWC PIPE DOUBLE SCREW EXTRUSION LINEWe also sell the mechanical parts related to this equipment separately.