| 1 | These culvert pipes will run out after half of the project is completed. | |
| 2 | The whole day he slipped end-over-end connecting flange with Angle steel, production. | |
| 3 | At this time we choose suitable for the production of the tube he slipped end-over-end machine groove. | |
| 4 | This paper introduces design and test of the pipe used in the circular pipe culvert under high embankment. | |
| 5 | A why he slipped end-over-end said the earth pressure calculation and construction is the way? |