How to mark the center line and divide a pipe circumference

[@EkaMulyono]

Thank for education

[@technicalstudies.]

Thank you.

[@prasadvarmarponnada1748]

Very nice

[@technicalstudies.]

Thank you Bro.

[@travelrash]

Can you say how to mark the level of capacity in the horizontal cylinder ?

[@technicalstudies.]

I will make a video on this subject Bro.

[@Эльдар-щ8л]

Супер

[@technicalstudies.]

Thank you Bro.