The good service life of Tieyi guardrail is inseparable from its main material hot-dip galvanized pipe and processing technology. But the hot-dip galvanized pipe is not effective, its zinc layer can not cover the same place will rust. The common place is the cross section left after the pipe is cut.

虽说热浸锌管材中的锌层会渗透进钢材表面，但这并不代表着锌层与钢材的融合。这一点在横截面上可以很清楚的看出来。管材进行切割之后要怎样处理横截面才能防止其生锈呢？

Although the zinc layer in hot-dip galvanized pipe will penetrate into the steel surface, it does not mean the fusion of zinc layer and steel. This can be seen clearly in the cross section. How to deal with the cross section after cutting the pipe to prevent it from rusting?

答案很简单，对于铁艺护栏来说，管材进行切割之后会在断口横截面出涂抹一层透明防锈漆。在防锈漆干透之后再进行粉末喷涂加工就可。进行喷涂时，粉末同样也会覆盖在横截面上，以此保障横截面不会生锈。

The answer is very simple. For Tieyi guardrail, a layer of transparent antirust paint will be applied on the cross section of fracture after pipe cutting. After the antirust paint is dry, powder spraying can be carried out. When spraying, the powder will also cover the cross section to ensure that the cross section will not rust.

对于铁艺护栏而言，由于部分断口是需要进行焊接作业的，所以这时断口就不能喷防锈漆了。而是在焊接完成后对于焊点进行打磨补锌作业，然后再进行整体粉末喷涂。

For the iron guardrail, because part of the fracture is the need for welding operation, so at this time the fracture can not spray antirust paint. However, after welding, the solder joints are polished and supplemented with zinc, and then the whole powder spraying is carried out.