37 Building construction; installation of oil well casing, tubing, and drill pipes for use in the oil and gas industry; demolition of concrete and steel structures in the nature of buildings; surface treatment, namely, water washing and painting of steel structures and steel panels; ultra high pressure water washing services; services related to fire protection, namely, applying fire protecting agents in the nature of protective coatings and fire protecting insulation material to steel structures, steel panels, steel pipes and parts for steel pipes; insulation materials installation services, namely, assembly of insulation material made from silicon, rubber, polyurethane and epoxy on pipes and parts of pipes; subsea insulation, namely, installation of undersea insulation materials for use in oil drilling; fire insulation installation and passive fire protection services, namely, installation of insulation materials for pipes, installation of insulation for fire protection of pipes, parts of pipes and steel structures; installation of scaffolding; rental of scaffolding; building construction services in the nature of climbing services, namely, providing dismantling and installation of steel structures and pipes, dismantling and installation of insulation material, painting contractor services, paint removal, and washing where the performer uses ropes to get access to the work area; installation and rental of positive pressure habitats, namely, tents; inspection services in the course of construction of scaffolding, steel structures, paint and paint work, insulation and fire insulation; building inspection services in the course of building construction, namely, inspection of insulation, paint, protective coatings on building materials, wall, ceiling and roof insulation panels on offshore platforms, on ships and on oil and gas refineries