... 丁头搁栅 header joist 金属搁栅 Joists of metal 双板搁栅 strip joist ...
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joists of metal
金属托梁
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Within the steel sector, one company that traders should keep an eye on is Nucor, a producer of about 25 million tons of steel annually, including hot- and cold-rolled steel, steel joists and metal buildings.
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