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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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9 i% [$ X+ g2 p; z9 A; tflanges and their joints - circular flangers for pipes,% }6 L/ w4 Q3 X6 I3 o4 A3 j
valves , fittings and accessories,PN designated-( T6 n: t& }: O1 }. L
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6 X% @* {7 E# [4 \/ x- Bhttp://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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