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 GB 23101.2-2008  
Implants for surgery - Hydroxyapatite - Part 2: Coatings of hydroxyapatite

外科植入物 羟基磷灰石 第2部分:羟基磷灰石涂层
 GB 17466.23-2008  
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations - Part 23: Particular requirements for floor boxe and enclosures

家用和类似用途固定式电气装置的电器附件安装盒和外壳 第23部分:地面安装盒和外壳的特殊要求

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