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What are the quotas for trench excavation of road pipelines?
When digging a pipe trench on the original road, the quota subtitle of the corresponding work content should be selected according to the original road surface condition and the width and depth of pipe trench excavation. Such as: breaking the original pavement concrete, manually or mechanically excavating trench earthwork, removing broken concrete garbage, removing residual soil, etc. Specific quota Buddhism can be found in the civil engineering quota.