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Hardness Testers - Stationary >> Rockwell - Accessories
Sun-Tec : Hardness Standards

Sun-Tec Hardness Standards are made to the highest standards of accuracy and consistency to provide a reliable method of verifying your hardness tester.

Manufactured in the U.S.A. and calibrated in the Sun-Tec standardization laboratory to NIST or ASTM Standards, Sun-Tec Hardness Standards help maintain and assure the accuracy of your Hardness Tester.




 Please specify hardness values when ordering!

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