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鋼管

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　　鋼管不僅用于輸送流體和粉狀固體、交換熱能、制造機械零件和容器，它還是一種經(jīng)濟鋼材。用鋼管制造建筑結構網(wǎng)架、支柱和機械支架，可以減輕重量，節(jié)省金屬20～40%，而且可實現(xiàn)工廠化機械化施工。用鋼管制造公路橋梁不但可節(jié)省鋼材、簡化施工，而且可大大減少涂保護層的面積，節(jié)約投資和維護費用。

發(fā)布時間：2022-12-09

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