... 黑边铁皮 edged plate 瓦楞黑铁皮 corrugated black sheet （黑铁皮的）磷酸盐处理 bonderizing ...
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corrugated d black sheet 瓦楞黑铁皮
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corrugated plate , corrugated sheet
The buildings have a structural frame made of galvanized steel and are clad in corrugated sheet metal painted black.
建筑采用了镀锌钢制成的结构框架，并且框架都包裹上了黑色波纹金属板。
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