GB/T 18358-2009
ActiveGeneral requirements of trim size and type area for primary and secondary school textbooks
中小学教科书幅面尺寸及版面通用要求
Application Summary AI generated
This standard specifies the required trim sizes and type area layouts for textbooks used in Chinese primary and secondary schools. It is applied by publishers and printing houses to ensure uniform page dimensions and readable text formatting across all official school textbooks. The standard governs both the physical book size and the spatial arrangement of content on each page to support consistent educational materials.
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