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DIN EN 12168:2016
Copper and copper alloys - Hollow rod for free machining purposes; German version EN 12168:2016
This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy hollow rod, finally produced by drawing or extruding, specifically intended for free machining purposes. The sampling procedures, the methods of test for verification of conformity to the requirements of this European Standard, are also specified.
Deutsches Institut für Normung [din]