construction work;site preparation work;building demolition and wrecking work and earthmoving work;test drilling and boring work;works for complete or part construction and civil engineering work;building construction work;engineering works and construction works;construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork;construction work for water projects;construction works for plants, mining and manufacturing and for buildings relating to the oil and gas industry;roof works and other special trade construction works;building installation work;electrical installation work;insulation work;plumbing and sanitary works;fencing, railing and safety equipment installation work;mechanical installations;building completion work;plastering work;joinery and carpentry installation work;floor and wall covering work;painting and glazing work;other building completion work;hire of construction and civil engineering machinery and equipment with operator;hire of cranes with operator;hire of earthmoving equipment with operator