Surface in catia||(JOIN, HEALING, CURVE SMOOTH)

How to join two surfaces in catia
How to use healing in catia.
How to use smooth curve in catia.

[@rajkumarvishwakarma6771]

Mouse ki aawaj bhut mst h

[@daretochase8964]

Pls explain healing command fully..in this video surfaces are not joined, but still closed the session...and went further

[@doshiforeverything9705]

u have not explain how curvature is goin to be smooth

[@KillerKingIndia]

Maza mouse gheun gelas kai re...

[@abhisheksaste9106]

Seriously..... U think that new catia user understand ur explanation?