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In the construction of high-speed railways, because the high-speed railway line is generally long, it is necessary to pass through the mountains and cross the rivers. In the lower-lying places, it is necessary to build a dry bridge to ensure that the speed of the trains will not decrease. Therefore, the protective fences of the railway trunks are When laying, it will involve the safety protection under the bridge. At this time, the straight 8002 railway guardrail is used.

The 8002 type railway protective fence metal mesh is welded with a Q235 low carbon steel wire, and then welded together with a rectangular square tube as a frame, and a connecting plate B is welded on the outside of the square tube for connection with the cement column. The whole is vertical and there is no bend. It is mainly used under the bridge where the high-speed railway passes.