| 摘要 |
The anchor system (1) has an expander (5) which is provided with a primary threaded portion for screwing into an expansible plug (3). A collection portion (13) is extended with respect to primary threaded portion such that collection portion is fed into expansible plug (4) by screwing the primary threaded portion in expansible plug (3). The secondary threaded portion (15) is provided behind the collection portion in insertion direction (E). |
