killer007 发表于 2017-11-16 18:05:41

BS EN 1759-3-2003 Flanges and their joints — Circular flanges for pipes, valve

BS EN 1759-3-2003 Flanges and their joints — Circular flanges for pipes, valves, fittings and accessories, class designated — Part 3：Copper alloy flanges




admin 发表于 2017-11-17 11:09:25


谢谢您的分享，金币已奖励!
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