Patents
- MANUFACTURING METHOD OF FORGED PISTON,
AND MOLD FORMANUFACTURING THE SAME: 2005.08.19 (1005109010000) - A MANUFACTURING METHOD OF UNIVERSAL JOINT: 2007.12.31 (1007922630000)
- A MANUFACTURING METHOD OF UNIVERSAL JOINT: 2007.12.31 (1100792264000)
- YOKE MANUFACTURING METHOD: 2008.12.22 (1008764200000)
- YOKE MANUFACTURING METHOD: 2010.09.10 (1009827250000)
- YOKE MANUFACTURING METHOD: 2013.04.11 (1101687531000)
- YOKE MANUFACTURING METHOD: 2016.11.15 (1016778850000)
- YOKE MANUFACTURING METHOD: 2016.12.13 (1016875310000)
