论文部分内容阅读
美国一个制造公司,生产一种平顶磨光机(图1),它能磨掉由于模板不平整,而留在混凝土平顶上的痕迹和凸出部分,并能割掉钉子,能对混凝土的平顶表面磨得很光滑,同时可作饰面处
A U.S. manufacturing company produces a flat-top sander (Fig. 1) that can wear off traces and projections that remain on the flat tops of concrete due to stencil irregularities, and can cut off nails and can work against concrete. The flat top surface is very smooth and can be used as a finish