It was 65 years ago... yesterday: Aug. 6th, 1945/Aug. 6th, 2010.
Experimenters' & Innovators' forum • Re: The dark art of diamond sharpening
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It's worth taking a look at this cutting machine.
This isn't some aluminum toy. The machine is made of steel and very stiff
cast iron. Everything is very r...
16 minutes ago
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1 comment:
三分之一的人生,可以決定另外三分之二的人生！！共勉哦！.
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