http://goto-kaz.livejournal.com/ ([identity profile] goto-kaz.livejournal.com) wrote in [personal profile] fixik_papus 2016-07-26 06:25 am (UTC)

на трубопроводах высокого давления есть жесткие правила, где и что стоят должно.
На некоторых даже фланцевое соединение недопустимо: только приварка.
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