killer007 发表于 2017-11-15 14:50:30

BS EN 1092-1-2007+A1-2013+C1-2014 Flanges and their joints - Circular flanges fo

BS EN 1092-1-2007+A1-2013+C1-2014 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1 Steel flanges




admin 发表于 2017-11-17 10:43:34

谢谢您的分享，金币已奖励!
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