What does OIS stand for?
OIS stands for "Ondergrondse Infra Services"
How to abbreviate "Ondergrondse Infra Services"?
"Ondergrondse Infra Services" can be abbreviated as OIS
What is the meaning of OIS abbreviation?
The meaning of OIS abbreviation is "Ondergrondse Infra Services"
What does OIS mean?
OIS as abbreviation means "Ondergrondse Infra Services"
