... -50mm,Extruder model LSJ65/30. Single-wall corrugated pipe extrusion line:it mainly uses PE,PP,PVC ... moulds inside and outside produces smooth uniform corrugated pipes.The forming blocks made of hard ... of the molding module and precision molding machine for the closed strycture,module link in ... wire and cable products threading pipe,washing machine drains,vacuum cleaner,ventilation pipes,tubes,etc. ...