In 2012, the Welding Institute completed installation of facility for the dairy factory for "MaRiLa" company in Kapan, Armenia. This facility can process 10 tons of milk per day. Installation performed by argon-arc welding. Pipelines and tanks filled with argon before welding, which allows us to exclude corrosion, the inside of the joints obtained are smooth and without cracks. This is especially important for the food and medical industries.