Best Video/Friction drilling (Flow Drilling - Friction Drilling - Form Drilling)

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 * blog=Best Video
 * module=Article
 * author=Gaijin
 * publishingtimestamp=2012/10/26 17:00
 * title=Friction drilling (Flow Drilling - Friction Drilling - Form Drilling)
 * categories=Science
 * leading=Friction drilling.
 * text={{ Widget YouTube Advanced | id = NhkWINPRK3A | width = 420 | height = 315 | language = en_US }}