Ponomarev S. Raschet i konstruktsiya vitykh pruzhin./Ponomarev S. Calculation and construction of twisted springs. In Russian (ask us if in doubt) - landofmagazines.com

TransliterationPonomarev S. Raschet i konstruktsiya vitykh pruzhin.

In EnglishPonomarev S. Calculation and construction of twisted springs. In Russian (ask us if in doubt)

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