How Do They Stamp Nomenclatures?

[cwarmouth]

Subject line says it all. How do pipe manufactures stamp the lettering on pipes?
Edited by jvnshr: Title capitalization.

 

[sablebrush52]

Metal stamp and a hammer.

 

[Waning Embers]

Some also use a press, and a few use laser engravers.

 

[crashthegrey]

And even fewer use a pyrography pen.

 

[Waning Embers]

This video shows the entire pipe making process, but skip to 10:11 for stamping.
https://youtu.be/TuJN8HBOQoQ

 

[ssjones]

Here's a freehand stamp. Scary!

https://www.youtube.com/watch?v=3-UjjIUBJ5A

 

[cwarmouth]

Wow. Well that answers my question.Thanks.