C E R T I F I C I R A N I T R E N E R I / P R E D A V A Č I
Instalacije gasa
Petrović Semin,
(CV, certifikat)
Škufca Hajdina,
(CV, certifikat)
Šećibović Midhat,
(CV, certifikat)
Brkić Ela,
(CV, certifikat)
Distribucija gasa
Petrović Semin,
(CV, certifikat)
Transport gasa
Petrović Semin,
(CV, certifikat)