The large roof window that lights the extension from its southern side features rib-like steel frames that cradle the windows as they stagger from flat to vertical angles.
大屋顶天窗从南侧采光，照亮扩展部分，天窗的特点为肋式钢框架，窗户放置在框架上，将他们按照从水平到垂直的角度错开。
Stainless steel rib machine is stainless steel pipe (steel pipe, round iron, round bar) specialized machinery, with a cost-effective, low processing costs, high efficiency, speed and features.
不锈钢螺纹机 名毅花管机械不锈钢螺纹机是不锈钢管（铁管、圆铁、圆钢）的专门机械，具有性价比高，加工成本低，效率高，速度快的特点。
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