[time-nuts] Machining some aluminum help!
zl3ag at radioengineering.com
Thu May 18 19:13:01 EDT 2017
Why are my eyes watering?
On 19/05/2017, at 5:03 AM, Bob Darlington wrote:
> I had
> to soak my cavity ring in nitric acid for a month to get the tap out.
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