| 摘要 |
Pipe shaped metal bunton for mining flexible arch lining, used by driving the long workings, is formed by an elongated body (1), which is flattened at both ends and at least one intermediate section (2) of flattening is bend out in the shape replicating profile of mine lining (5 ), flattening on both sides is equipped with at least one first fastening hole (4), the second fastening hole (4') for clamp (3), whereby the elongated body (1) is equipped in the flattened part or the whole length brace (6). |
