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Background
Old Community
Under the big plan of old community optimization, Beijing’s Environmental Department decided to upgrade the drainage ability in old community. Considering the cost of labor, material and time, it is extremely difficult to upgrade the stormwater pipe in the old community.
New Community
Under the big plan of old community optimization, Beijing’s Environmental Department decided to upgrade the drainage ability in old community. Considering the cost of labor, material and time, it is extremely difficult to upgrade the stormwater pipe in the old community.
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