killer007 发表于 2017-10-16 11:12:26

BS EN 1092-3-2003 Flanges and their joints - Circular flanges for pipes, valves,

BS EN 1092-3-2003 Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3 Copper alloy flanges




admin 发表于 2017-10-16 19:44:44


谢谢您的分享,金币已奖励!
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