The system do layer-building of the cores drawn on the one-piece basis by mold into the number of layers required by customer, and provides inclination per block to minimize noise or vibration. Based on the advanced technology and know-how accumulated by production of E&I and MOTOR CORE and manufacturing of mold for over 20 years, Hankook Core has developed CORE mold using super-precision AC/DC turning by means of the state-of-the-art CAD/CAM, which enables the company to reduce cost, achieve high quality products and contribute to the strengthening of our competitiveness on the world market. Also our super-precision technology shows world-class level. Hankook Core do its best to extend the service life of mold and develop complex large precision mold on the basis of continuous R&D.