37 Construction of structures involving coating buildings, scaffolding, and erected building frames with spray fireproofing, spray thermal and acoustical insulation, intumescent fireproofing and lightweight insulating concrete in buildings; Construction project management services in the field of coating buildings, scaffolding, and erected building frames with spray fireproofing, spray thermal and acoustical insulation, intumescent fireproofing and lightweight insulating concrete; Construction of structures involving the installation of building structural frames, panels, walls, flooring, ceilings, and scaffolding coated in spray fireproofing, spray thermal and acoustical insulation, intumescent fireproofing and lightweight insulating concrete; Construction project management services in the field of installation of installation of building structural frames, panels, walls, flooring, ceilings, and scaffolding coated in spray fireproofing, spray thermal and acoustical insulation, intumescent fireproofing and lightweight insulating concrete