For steel members received these treatments, rolled scale, rusted attachments are erased into punctual blotch, and sliver gray metal is exposed instead.

• 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。