| 摘要 |
The device has a connecting part (1) and a separable calibrating part (2), which contains a guide sleeve for a connecting screw. The connecting part is fixed at a surface area at a beam using screws in a position, which is defined by a marker at the connecting part with respect to an abutting surface. The calibrating part is fixed at the connecting part in adaptation to a length of the utilized connecting screws in different positions. |
