In the standard, the following summary of test results: each test three samples, each sample test results 3, 3 takes a maximum value from the results, and then calculate the average value as the maximum value of three samples The average rebound rate . However, some manufacturers' instruments on the market failed to understand the requirements of the standard on the test results, resulting in unreliable test result data. At the same time, the customer's attention and degree of attention to this item is not enough, and it hopes to attract your attention.
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