Very good explanation sir,

Tu see great sir nice lecture

Awesome 👍

very nice sir carry on

Very nice lecture sir Thank you so much

Very good lecture sir

Thank you Sir

Sir pls. tell about the property of thermoplastics in brife and how can we know about any part of plastic make which material. mainly I want to know visully differences b/w abs ,pc/abs and pc. Sir please tell about these parts.

Hindi me sir speek