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手动阀
,创建页面，内容为“ [[File:手动阀.jpg|thumb|400px|right|[https://img.sg560.com/member_Data/img201108/223104/2011081514382675.JPG 原图链接][http://www.sg560.com/sells/c5743/bosun…”
[[File:手动阀.jpg|thumb|400px|right|[https://img.sg560.com/member_Data/img201108/223104/2011081514382675.JPG 原图链接][http://www.sg560.com/sells/c5743/bosun_4461885.html 图片来自商国互联网]]]
== 视频 ==
{{#ev:youku| XMzU2NDcwMTU5Mg==|alignment=left}}
== 参考文献 ==
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[[Category:472 金屬工藝]]