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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,
) F: k4 ^* U7 B- k6 gvalves , fittings and accessories,PN designated-" _+ t5 I2 ?+ v
part 1 steel flanges, z1 u- X) G5 G2 U( T- E
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http://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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