killer007 发表于 2017-10-16 10:53:26

ASME B16.1-2015 Gray Iron Pipe Flanges and Flanged Fittings：Classes 25, 125, a

ASME B16.1-2015 Gray Iron Pipe Flanges and Flanged Fittings：Classes 25, 125, and 250



admin 发表于 2017-10-16 19:44:07

谢谢您的分享,金币已奖励!
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