請高手解答EN10025

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EN10025-3
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的區(qū)別,。
% R$ y$ q' U/ J8 g# MEN 10025-2:2004, Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy
. y8 I, d3 h9 U& Bstructural steels.
EN 10025-3:2004, Hot rolled products of structural steels - Part 3: Technical delivery conditions for
1 c2 |8 A! w/ N! E, Onormalized/normalized rolled weldable fine grain structural steels.
  Y' Y7 r5 n" [' M8 REN 10025-4:2004, Hot rolled products of structural steels - Part 4: Technical delivery conditions for
thermomechanical rolled weldable fine grain structural steels.
7 W, N7 c2 c& l# IEN 10025-5:2004, Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural
steels with improved atmospheric corrosion resistance.

本人只看出化學成分的細微差別,，無非是從2到5 雜質(zhì)PS 等的控制嚴格了
5 {' |" a1 @5 {! V+ x3 [( h請從交貨狀態(tài)，檢驗方法等方面區(qū)別給與支持.
6 A8 [# F8 b/ p& S$ v' ]謝謝各位大蝦了�,。,。�,！