the ripple shaper is the production dog-legged plastic corrugated pipe core equipment,by formation module, transmission system,control system three parts of compositions,the formation module the module which (or level) starts out from opposite directions folio by 40-70 pair about composes generally,as soon as along path migration which writes,the module closed becomes the circular pipe to become the die space,the module opens,causes the product drawing of patterns,the module may by the water or the air cooling,its formation process is:squeezes out the unfinished piping from the extruding machine under certain barometric pressure,after blows up (or vacuum adsorption),in causes the outer wall distinction fitting puts on the formation in the formation module and the decided but not yet announced diameter,the ripple shaper simultaneously has the hauling tubing function.