GB/T 147-1997.Writing paper and certain classes printed matter-Untrimmed sizes. 1范围 GB/T 147规定了印刷、书写...

GB/T 147-2020.Untrimmed sizes of printing, writing and drawing paper. GB/T 147规定了印刷、书写和绘图用原纸的尺寸和方向的表...