| 摘要 |
A steel band bent into a U-shape is inserted into the post with its arms (5) pointing downwards. An anvil part (4) is incorporated or fitted into the bottom part of the post, leaving gap openings (6) between it and the inner wall of the post on both sides. The steel band is then hammered upon so that its arms are forced out through the gap openings and into the surrounding soil. |
