17th July 2009, 11:11 AM | #1 |
Member
Join Date: Nov 2008
Location: Russia, Leningrad
Posts: 355
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processing of barrels
I have a question to experts on early fire-arms. In what year have started to process an internal surface of а channal of barrel? I am entreresting not only drilling, but also processing by longitudinal moving abrasivs sticks if that was....
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