| 摘要 |
PURPOSE: A method for manufacturing a file for jewelry and the file for jewelry are provided to design a file in a simple and firm structure. CONSTITUTION: A method for manufacturing a file for jewelry is constituted as follows. The file for jewelry is formed by connecting unit parts of the same structure to each other. The unit parts have first to fourth cylinders(31-34) arranged at a constant interval and are equipped with a joint unit(30) in which a hole is formed in the center thereof in the vertical direction and fixing protrusions are formed in both sides thereof. On both sides of the joint unit, fixing grooves corresponding to the fixing protrusions are formed. |
