标准摘要
[中文适用范围]： 描述了使用圆形和方形穿孔的三种图案。 孔的尺寸范围为方孔小至 2 毫米，圆孔小至 0.5 毫米。 指定了五种节距与孔的比率，导致标称开口面积范围从大约 60% 到 23%。 [外文原描述]： Describes three patterns using round (circular) and square perforations. The sizes of holes range down to 2 mm for square holes and to 0.5 mm for round holes. Five ratios of pitch to hole are specified which result in nominal open areas ranging from about 60 % to 23 %.
英文名称Industrial plate screens — Part 2: Thickness below 3 mm