China National Standards

China spools GB Standards List

  •  China "spools" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 19523-2004 Micrographics--16mm and 35mm microfilm spools and reels--Specifications
    缩微摄影技术 16mm与35mm 缩微胶片防光片盘与片盘 技术规范    		 China National Standards
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