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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,
1 ~$ ~: L( k5 }0 r' [( Q( ~3 g- e5 W+ O8 Yvalves , fittings and accessories,PN designated-
* d4 a/ f8 X: A8 P; r4 [( upart 1 steel flanges
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1 M0 V) h. D9 H: I0 phttp://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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