| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of a metal C ring, whose whole shape is rectangular, at low cost with a simple manufacturing device, and with high quality.SOLUTION: There is provided a method of manufacturing a metal C ring, whose whole shape is rectangular, from a metal C ring intermediate body 5, whose shape is circular, with a radially curved part formation reception tools 30, 30, 31, 31 capable of being relatively separated and moved. |
