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NF EN 1043-1,Destructive test on welds in metallic materials - Hardness testing - Part 1: Hardness test on arc welded joints
( j, P* w, l) ?, U2 cNF A 05-152,Iron and steel products - Macroscopic examination by strong mineral acid attack3 h i# b; ]9 i
NF A 05-150,Steel products - Micrographic examination techniques. b. B+ j: p$ e# U7 U$ z! ^/ V
NF A 05-165,Steel products - Manual point counting method for statistically estimating the volume fraction of a constituent with a point grid2 \; S# ]: q2 X, E' {# \9 p, i
& j, y& c0 B4 h( ?9 D- O& x
请问这几个标准对应的国标是哪几个,谢谢了!! |
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