论坛里有，先搜索一下就好了。 * L$ L( ~+ O6 _2 ^4 y: [4 E 7 d. Q( N' ^0 l/ r+ e2 k6 eBS EN 10028-3-2009 Flat products made of steels for pressure purposes. Weldable fine grain steels, normalized ?( P' |; Q( J( y M- a; V http://www.3dportal.cn/discuz/viewthread.php?tid=9347789 M% |+ C ^6 [7 u8 q5 |/ h
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发表于 2011-10-28 14:44:18