what is engineering drowing in tamil

learn about engineering drawing for beginners,
how to understand the engineering drawing?
elements you have known?
history of engineering drowing
why technical drowing using in manufacturing companys?

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[chapters]
00:00 intro
00:13 what is Drowing
01:38 history of engineering drowing
02:17 Elements of drowing
04:28 why drowing is important
06:51 Application of engineering drawing