Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
Through grille/hole design (such as a leakage area of 83.3%, more than twice that of cast iron), rainwater and sewage are quickly guided into the drainage ditch, reducing surface water and preventing slippery roads, traffic congestion, and floods. For example, in plum rain season or rainstorm, urban waterlogging can be avoided.
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