法国标准对应的国标
NF EN 1043-1，Destructive test on welds in metallic materials - Hardness testing - Part 1: Hardness test on arc welded jointsNF A 05-152，Iron and steel products - Macroscopic examination by strong mineral acid attack
NF A 05-150，Steel products - Micrographic examination techniques
NF A 05-165，Steel products - Manual point counting method for statistically estimating the volume fraction of a constituent with a point grid
请问这几个标准对应的国标是哪几个，谢谢了！！
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