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Mẫu chuẩn độ cứng NOVOTEST Brinell Hardness Test Blocks HB
Hardness testing blocks are designed for metals hardness testers calibration.
There are availabe different nominal values of the blocks, such as: 100HB, 200HB, 300HB, 400HB, 600HB and others.
The blocks meet ASTM E10 standard.