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