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| среднее значение яркости (ASTM D6557 Standard: AVG – measurment of brightness units on the test steel ball, indicating the degree of rust protection. Paul_K) | |||
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| среднее значение яркости (ASTM D6557 Standard: AVG – measurment of brightness units on the test steel ball, indicating the degree of rust protection. Paul_K) | |||