valentin
Valentin Grempka
Telecom Engineer focused on DWDM and optical transmission. Senior Technical Service Engineer at Adtran.
France
Browse others (13)
![]() |
solewolf Keith Armstrong |
![]() |
chazsmi Charlie Smith |
![]() |
pyrykantanen Pyry Kantanen |
![]() |
nalli NALLI |
![]() |
mpoessy Mike Poessy |
![]() |
m7r_mahmoud Mahmoud Tohmaz |
![]() |
linaesa Lina Esa |