标题: BS EN 1759-1-2004 Flanges and their joints — Circular flanges for pipes, valve [打印本页] 作者: killer007 时间: 2017-11-16 18:05:23 标题: 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
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