Asphalting; Bricklaying; Building construction supervision; Carpentry services; Cleaning of building exterior surfaces; Cleaning of buildings; Construction consultancy; Demolition of buildings; Drilling of deep oil or gas-wells; Drilling of wells; Drilling of deep oil or gas-wells; Elevator installation and repair; Harbor construction; Installation of doors and windows; Interference suppression services for electrical apparatus; Leasing of construction equipment; Masonry; Mining extraction; P...