Maintenance and repair of agricultural tractors, cultivators and lawn mowers
Building of lines and networks of telecommunication
Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
Ground-water lowering and dredging of construction sites
Assembling of inside and outside metallic woordworks: doors, windows, frames for windows and doors, stairs, closets for equipped kitchens, shop equipments, etc.
Assembling of partitions in gypsum
Assembling and disassembling of scaffoldings and work platforms
Trade of trailers and semi-trailers, new or used
Hire of tractors and cultivators
Chimney sweeping and cleaning of hearths, ovens, incinerators, boilers, air ducts and smoke removal appliances
Working by stock removal of metals
Construction of high roads and other types of roads
Construction of sewerage systems
Construction of civil-technical works for electricity and telecommunications
Electro-technical installation works at buildings
Electro-technical installation works, with the exception of those executed at buildings
Installation of heating, air-conditioning and ventilation
Insulation works
Laying of floors and fitting wooden wall-coverings
Other types of specialised building activities
Wholesale in machines, tools and appurtenances for the agriculture
Do-it-yourself businesses and d.i.y. shops of common building materials
Retail trade in ironware and tools in specialised shops
Rental and lease of machines, equipment and tools used by the do-it-yourselfer