NATO has recognised the 5.7 × 28 mm calibre cartridge as a standard calibre under Standardization Agreement (STANAG) 4509, Fabrique Nationale de Herstal (FN Herstal) announced in a press release on 25 February. The 5.7 × 28 mm cartridge joins a NATO-standard ammunition portfolio that includes 9 × 19 mm, 5.56 × 45 mm, 7.62 × 51 mm, and 12.7 × 99 mm.
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机译：北约已经认识到5.7×28毫米口径盒作为标准化协议（Stanag）4509，Fabrique Nationale de Herstal（FN HESTAL）在2月25日在新闻稿中宣布。 5.7×28 mm墨盒加入Nato标准弹药组合，包括9×19 mm，5.56×45 mm，7.62×51 mm，12.7×99 mm。
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