Showing 37–37 of 37 results
Preparation for the SHK professional qualification test (without a master), Gaskonzession, Drinking water concession
The tutoring prepares for the theoretical expert examination TRGI, TRWI for registration with the supplier in the plumber and heating engineer trade.
Consultation appointment/learning status assessment, Gaskonzession, Drinking water concession
1 on 1
Online lessons