| 摘要 |
This device is to improve hair pins. The BiNe-Pin is composed of 3 basic trunks, (1, 2 and 3). There are prominence and depression on each main axes (10, 11), and the spring (4) through holes (3 and 9), trunks (2, 12), holes (1, 9'), press softly the basic trunks (1 and 3). |
