The wheel would need to withstand immense and constantly changing stresses as it rotated, so to make the structure more robust, the steel sections were bolted rather than welded together.
轮子旋转时需要承受巨大的和不断变化的压力，所以要使结构更坚固，钢的部分要用螺栓连接，而不是焊接在一起。
"Market booths use a lot of mild steel sections, and mild steel tends to rust, unlike stainless steel, so it needs protection," says architect Daniel Patzold.
建筑师Daniel Patzold说，“市场棚亭使用了大量的碳钢构件，它们和不锈钢不一样，它们很容易生锈，所以必须有保护措施。”
The company has a variety of specifications for steel sections and aluminum models.
本公司拥有各种规格型号塑钢型材和铝型材。
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