... of effort in research & development, we successfully developed a shrinkless expander, it can save up to 2% of copper. For instant ... , a normal expander cause copper shrink 3%, while shrink less expender only shrinks ... ,200mm1,600mm2,000mm2,000mmcirculation of machine20set20set20set20setpower of motor18.5kw22kw22kw30kw Shrinkless Expander