HRA, HRB, HRC

Hardness testing blocks are designed for metals hardness testers calibration.

There are available different nominal values of the blocks, such as: 25 HRC, 45 HRC, 65 HRC, 90 HRB, 83 HRA.

The blocks meet ASTM E18 standard.

DEBUG IS ENABLED! Debug mode is only for development mode and shouldn't be enabled in production mode.

Rockwell Hardness Test Blocks Sri Lanka
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