In the year of 2008, we applied a new utility patent which was researched and developed by general manager Chen Hong and the chief engineer Sheng Weiguo, for twisting machine by heteromorphism wire to the single-wire pre-wrest unit, and now the patent have already obtained the sanction. The use of this new unity patent can settle the problem of all kinds of the sections lead to enter the die correctly, what also improved the efficiency of the manufacture process.