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1. |
How is a blind drilled hole of 15mm diameter and 15mm deep dimensioned? |
A. | M15, DEEP 15 |
B. | φ15, DEEP 15 |
C. | φ15 |
D. | φ15 x 15 |
Answer» C. ‚âà√¨‚àö√∫15 | |