NACE-BEL 2025 Codes
43
Specialised construction activities
43.4
Specialised construction activities in construction of buildings
43.42
Other specialised construction activities in construction of buildings
43.421
43.421
Level 5
Waterproofing of walls
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Parent code
43.42
Other specialised construction activities in construction of buildings
Child codes
43.42101
Treatment of walls with water repellent products