湛江交通护栏批发 市政交通道路隔离栏 京式护栏价格

湛江交通护栏批发 市政交通道路隔离栏 京式护栏价格

Zhanjiang traffic barrier wholesale municipal traffic barrier Beijing barrier price

但这样虽然保证了立柱顶面平顺。

But this ensures that the top surface of the column is smooth.

但由于路面实际标高与设计标高之间存在误差。

However, there are errors between the actual elevation and the design elevation.

而且误差较大，所以会出现一行立柱距路缘石顶面高度不一致的现象。

And the error is large, so the height of a row of columns from the top of the curb is inconsistent.