structural iron

基本解释

Structural Angle Iron;
三角铁；
The vanes are made of structural angle iron.
叶轮可用角钢制成。
A structural sheet iron, usually galvanized, shaped in parallel furrows and ridges for rigidity.
一种结构用条状铁，通常是镀了锌的，为防止变形而具有平行的槽和边。

But a previous publisher, Harrison Gray Otis, so angered labor leaders with his opposition to unions that John McNamara of the International Association of Bridge and Structural Iron Workers dispatched his brother James to blow up the Times building in 1910.
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In a meeting with analysts and investors, Rio Tinto CEO, Sam Walsh, said that the company will most likely go ahead with its proposal to expand iron ore production over the next few years, barring a major structural change in the market.
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