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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...
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flanges and their joints - circular flangers for pipes,! x2 z h" o' Y9 b5 a/ c* _
valves , fittings and accessories,PN designated-6 ]) G3 m& E T- G" ~ F3 L+ ?7 b F
part 1 steel flanges' L- }, U4 a8 a5 c+ n6 D9 q
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) a; F6 G2 W8 q5 w7 Lhttp://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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