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... > Liu Ming opened his mouth and said.
Generally speaking, underground pipe corridors are built under the road, and the pipes follow the road. This saves land, is easy to manage, and does not affect other buildings.
Of course, the amount of underground pipe gallery work is not small!
Because it has to accommodate many lines, such as rainwater pipes, sewage pipes, drinking water pipes, hot water pipes, industrial water main pipes, electricity, cables, communication cables, s ...
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