For steel members received these treatments, rolled scale, rusted attachments are erased into punctual blotch, and sliver gray metal is exposed instead.
英
美
释义
这样处理后的构件表面轧制氧化皮、锈和附着物残留在钢材表面的痕迹已是点状的轻微污痕,构件表面露出银灰色的金属光泽。
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