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#Industrial_drawing#Engineering_drawing#Basics_of_industrial_drawing#Rules_for_writing_dimensions#First_year_of_secondary_industrial#mhmdtechtips#Mohamed_Amer#mhmd_amer In this video, the second exercise (Lesson on writing dimensions) in the first unit (Basics of industrial drawing) from the book (Industrial Drawing) for the first year of industrial secondary school, first semester, is explained and drawn.