| 摘要 |
PROBLEM TO BE SOLVED: To certainly polish disk materials such as a CD, especially to simultaneously polish surfaces and peripheral edge parts of the disk materials. SOLUTION: In this polishing method, the surfaces and peripheral edge parts of the plural disk materials 42 are polished by abutting polishing tools on an outer surface of a cylindrical work 44 having a support shaft 41 installed with the plural disk materials 42 and rotating the polishing tools and the cylindrical work 44. |
