Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Installation in buildings or in other projects of building of: pumbling systems and hygiene appliances, pipes for gas and water (except for heating), setting of automatic extinguishers, etc.
Work of insulation of coolers or refrigerated warehouses
Trade intermediaries for sanitary articles
Wholesale trade of bathroom facilities: baths, sinks, wcs, etc.
Wholesale trade of equipments for sanitory systems and central heating: pipes, pipe fittings, tabs, rubber pipes, etc.
Specialized retail trade of a wide range of articles for gardening and horticultural products (gardening centres)
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Plumbing works
Installation of heating, air-conditioning and ventilation
Insulation works
Wholesale in sanitary
Retail trade in sanitary products and sanitary installation materials in specialised shops
Mediation for purchase, sale and rental of real estate, this for a fixed amount or by means of a contract
Engineers and similar technical advisors, with the exception of surveyors