Recently, several workers on Xinxing Street, Laishan District, are installing a fall protection cover. According to municipal staff, in order to prevent pedestrians and vehicles from crashing into sewers due to heavy rainfall during the flood season, the district urban management bureau installed fall protection covers at the intersections of major urban roads such as Yingchun Avenue and Xinyuan Road. Pilot.
The manhole cover uses reinforced concrete and cast iron concrete as the material, with additional steel fiber, with a double-layer design, the middle height difference is 6cm, and the second manhole cover is provided with a leakage hole, which is characterized by anti-dropping, silent, anti-settling, environmental protection, and safety.
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