killer007 发表于 2017-11-16 18:05:23

BS EN 1759-1-2004 Flanges and their joints — Circular flanges for pipes, valve

BS EN 1759-1-2004 Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, class-designated — Part 1：Steel flanges, NPS 12 to 24




admin 发表于 2017-11-17 11:09:23


谢谢您的分享，金币已奖励!
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