killer007 发表于 2017-11-16 15:29:02

BS EN 1591-1-2013 Flanges and their joints — Design rules for gasketed circula

BS EN 1591-1-2013 Flanges and their joints — Design rules for gasketed circular flange connections — Part 1： Calculation




admin 发表于 2017-11-17 11:05:38

谢谢您的分享，金币已奖励!
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