復合管河道欄桿 防撞護欄批發 鍍鋅河道護欄

Composite pipe channel guardrail anti collision guardrail wholesale galvanized River guardrail

該原則主要是從公路等級、橋梁護欄外側的危險物特征等方面考慮。

The principle is mainly considered from the highway grade, the characteristics of dangerous substances outside the bridge guardrail, etc.

即防撞等級的確定。

That is, the determination of anti-collision level.

該原則是所有所選護欄都應滿足的基本要求。

This principle is a basic requirement for all selected guardrails.

所以在是否是合理選擇的問題上本條原則上不能作為判別依據。

Therefore, in principle, this article can not be used as the basis for judging whether it is a reasonable choice.

佛山復合管護欄加工定制 防撞河道橋梁護欄廠直銷

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