Methode Traditionalle ke eng?
Mokhoa Traditionalle ke mokhoa oa ho hlahisa veine e phatsimang. E ile ea qaptjoa ka lekhetlo la pele ka 1531'me e akarelletsa ho belisoa ha veine habeli. Ho belisoa ha bobeli ho hlahisa carbon dioxide e etsang li-bubble tsa veine e phatsimang.