| Name | : A a r rakennustekniikka ky |
| Business Number | : 1808959-2 |
| Category | : Limited Partnership |
| Primary language | : Finnish |
| Place of taxation | : Vantaa  | Date of registration | : 28/02/2003 |
| Activity | : Construction of residential and non-residential buildings |
| Alias | : A.A.R Rakennustekniikka Ky, Erkki Ruhanen Rakennustekniikka Ky |