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2006-04-28

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法兰及其接头.管道部件.PN的定义和选择；德文版EN 1333:2006

2006-06-01

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Pipework components—Definition and selection of nominal pressure

2019-05-10

管道元件　公称尺寸的定义和选用
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2019-03-25

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1995-06-22

Pipework components. Definition and selection of DN (nominal size)
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1996-03-15

Pipework components - Definition and selection of DN (nominal size)
管道工程部件.公称尺寸DN的定义和选择（ISO 6708-1995）；德文版EN ISO 6708:1995

1995-09-01

BS ISO 6708. Pipework components. Definition and selection of DN, NPS and A
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2008-09-01

PIPEWORK COMPONENTS. DEFINITION AND SELECTION OF DN (NOMINAL SIZE). (ISO 6708:1995).
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1996-05-23