| 摘要 |
The device has a t-blade runner (1) that is detachably fastened to a base. The base has a t-blade runner holder (14), at which two pairs of stop clip pushers (2) are arranged in front and rear areas for detachable connection and locking of the runner. The holder possesses a V-shaped cross section and the runner possesses a V-shaped retainer corresponding to the cross section of the runner. |
