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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.../ M* O% ]' K( V. |) A) j
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W. s { W' D( d: Jflanges and their joints - circular flangers for pipes,* c. f3 w* \& J" D6 t, x: s# S9 k
valves , fittings and accessories,PN designated-
( f, _9 a4 L. O' r' a& A3 q6 spart 1 steel flanges# R( B# `: ?1 a" d' t( r
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: E2 c& Q7 q- N' s' j# phttp://www.3dportal.cn/discuz/vi ... ht=BS%2BEN%2B1092-1 |
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