Zakład Instalacji Sanitarnej Centralnego Ogrzewana i Gazu Piotr Krzyżaniak

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.23.Z - Installation of insulation

43.35.Z - Performing other finishing construction works

43.41.Z - Performing roof structures and coverings

43.50.Z - Specialized construction works in the field of civil and water engineering

43.91.Z - Masonry works

43.99.Z - Other specialized construction works, not classified elsewhere

46.19.Z - Activity of agents involved in wholesale trade of non-specialized goods

46.83.Z - Wholesale trade of wood, construction materials, and sanitary equipment

46.84.Z - Wholesale trade of metal products and hydraulic and heating equipment and accessories

47.52.Z - Retail sale of small metal products, building materials, paints, and glass

47.54.Z - Retail sale of electrical household appliances

47.55.Z - Retail sale of furniture, lighting equipment, tableware, and other household articles

47.91.Z - Intermediary retail sale, non-specialized

47.92.Z - Intermediary retail sale, specialized

49.41.Z - Road freight transport