An noval approach to do threading suspension without cog
Objectives: Smooth threading (without cog)had been performed about 10 years ago. The mechanism and effect of smooth thread insertion is neocollangesis.In recent years,suspension by threading with cog had been such a big hit because of its better result .However,it's not easy to correct errors after cog threading.And it's also not easy to remove the cog thread after insertion. The speaker will show us a noval approach to do thread suspension without cog.
