DIN EN ISO 6507-4:2006 Metallic materials - Vickers hardness test - Part 4: Tables of hardness values (ISO 6507-4:2005); English version of DIN EN ISO 6507-4:2006-03 has been changed from DIN EN ISO 6507-1:1998 Metallic materials - Vickers hardness test - Part 1: Test method.
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