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发表于 2009-6-7 10:51:50
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来自： 中国北京
bs en 1092-1: 2002 flanges and their joints - circular flangers for pipes...; b: x4 V; G# n- z% V, k, a
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flanges and their joints - circular flangers for pipes, I' K' a- n/ ~4 H
valves , fittings and accessories,PN designated-2 }! F9 R* X1 a% K
part 1 steel flanges, _! e1 r- J9 B! F, V: H: o2 b8 c
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& b7 B& j$ U0 Ihttp://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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