极精密 meaning in English

superprecision

2 . gear change feeding device equipped with precision indexing samensures an accuracy of 0 . 05mm at the feeding speed of 60
由极精密之indexing cam所组成之gear change式送料
The processing speed and precision adsolutely ezceeds type of machine made by the states or japan as truly reaches extreme precision , time saving , hign efficiency of professional and multiple function of grinding tool
加工速度及精密度绝对超越欧洲、美国、日本制造之任何机种，真正达到极精密、省时间、高效率的专业用全功能研磨加工利器。