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#Technicaldrawing #Geometry #Engineeringdrawing
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Background music is taken from www.free-stock-music.com No. 3 by The Denotes | [ Ссылка ] Music promoted by [ Ссылка ] Creative Commons Attribution-ShareAlike 3.0 Unported [ Ссылка ]
#Technicaldrawing #Geometry #Engineeringdrawing