良好的施工性能：管道质轻，焊接工艺简单，施工方便，攻城综合造价低。
Good Workability: pipe is light, welding technology is simple, construction is convenient, and it is low for engineering comprehensive cost.
某科技综合楼加固工程中采用了多种加固方法，梁采用外粘钢板加固，用钢量少，造价低；
Several ways were employed in the reinforcement of a science and technology complex building. Beams were strengthened by sticking steel plates outside at less steel consumption and low costs;
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