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1. |
In Abrasive jet machining, what may be the size of the abrasive grains used? |
A. | 10 – 40 µm |
B. | 50 – 100 µm |
C. | 100 – 150 µm |
D. | 200 – 300 µm |
Answer» B. 50 – 100 µm | |