37 Industrial construction services, namely, construction and maintenance of industrial plants, commercial buildings, warehouses, roads and streets; civil and structural construction services, namely, provision of earthworks, concrete, rebar, structural steel; piping and mechanical services, namely, major equipment installation; electrical and instrumentation services, namely, maintenance of operating plants and general industrial installations; insulation, refractory and tile installation services; crane rental and leasing for construction purposes; construction supervision, namely, providing manpower services; industrial construction preservation and restoration services, namely, corrosion coatings and concrete restoration; scaffolding services, namely, scaffolding erection and dismantlement; module construction services, namely, the construction, installation, alteration and repair of steel buildings, metal decking and planking