The pavement paved by the paver shall be inspected manually and the defective part shall be repaired and leveled in time. The method is to build a working bridge, and the workers finish the bridge with wooden blocks by hand, hang a piece of coarse cloth on the bridge to sweep away the two sides of the fish scale left by the trowel, and the 30-50cm road surface is mainly leveled by professional technicians. .<br>
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