GB/T 42211-2022糟朽、脆弱报纸或期刊棉网修复加固方法国家标准
英文:Reinforcement method for the cotton net consolidation of decayed, fragile newspaper or periodical GB/T 42211-2022介绍: ...
英文:Reinforcement method for the cotton net consolidation of decayed, fragile newspaper or periodical GB/T 42211-2022介绍: ...