b) pin insertion hole in
Requirements
- Tolerance high position, high level of copper cathodes.
- Dimensional tolerances low, moderate gloss, must have openings for easy moving key.
Example: O30 selected back-end Fasteners 10 holes level domain exact distribution D, deduce the true size of the hole is 30.08 ÷ 30.18 mm.
the method worked: Drill + reamer
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