CV joint we manufactured is used in steel making, continuous casting, hot rolling and cold rolling in steel industry and performs very well. E.g. During the 11th Five-year Plan , Boya provided more than 4000 ball cage universal couplings specially for over 20 production lines to BaoSteel. We also provide more than 400 sets of ball cage universal couplings to Shougang Shunyi steel mill at one lot.