NOS BUREAUX
ENERGISSIMA - FORUM CONSTRUCTION DURABLE - BULLE - 01.06.2021
CONFERENCE RENOVER SON BATIMENT - CHATEL-ST-DENIS - 23.06.2021
FORMATION GEOTH21 (L4 - GeoCAD) - FRIBOURG - 09.12.2021
CAFE-CONSEIL RENOVATION - FRIBOURG - 2021