6
Steel buildings; Framework of metal for building
37
Repair and maintenance of reactors being industrial chemical installations; Freezing equipment installation and repair; Welding for repair purposes; Servicing of industrial boilers; Cleaning of industrial boilers; Construction of structures for the storage of natural gas; Construction of structures for the transportation crude oil; Maintenance and repair of heating apparatus; Repair and maintenance of framework, not of metal, for building; Maintenance and repair of ventilating apparatus; Repair and maintenance of pipes, tubes and hoses, and fittings therefor, including valves, of metal; Installation of pipe systems for conducting of liquids; Repair and maintenance of distillation columns; Installation services of framework, not of metal, for building; Construction of steel fabrications; Installation services of heating cartridges; Renovation of industrial boilers; Installation services of flanges of metal [collars]; Maintenance of plumbing; Installation services of furnace boilers; Plumbing; Repair and maintenance of steel buildings; Repair and maintenance of storage tanks [structures], not of metal; Installation services of thermal storage instruments [solar energy] for heating; Repair and maintenance of tanks of metal; Insulation of pipes; Repair and maintenance of reactors for gas-solids reactions; Repair and maintenance of furnace boilers; Repair and maintenance of industrial boilers; Installation services of tanks of metal; Repair and maintenance of pumps [machines]; Repair and maintenance of framework of metal for building; Repair and maintenance of pressure water tanks; Pipe laying; Installation services of pipes, tubes and hoses, and fittings therefor, including valves, of metal; Installation of industrial furnaces; Repair and maintenance of flanges of metal [collars]; Repair and maintenance of heating cartridges; Repair and maintenance of columns for physical-chemical separation of fractions; Repair or maintenance of industrial furnaces; Installation services of refrigerated containers [gas]; Maintenance and repair of cooling appliances and installations; Construction of pipelines; Repair and maintenance of refrigerated containers [gas]; Maintenance and repair of dust extraction apparatus; Installation services of columns for physical-chemical separation of fractions; Installation services of framework of metal for building; Installation services of distillation columns; Repair and maintenance of reactors for gas-gas reactions; Maintenance and repair of compressors; Installation services of reactors for gas-gas reactions; Services for the repair of heat exchangers; Maintenance and repair of pipes used in industrial equipment; Installation of ventilation and dust extraction systems; Installation of pipe systems for conducting of gases; Installation services of reactors for gas-solids reactions; Installation of pipelines; Maintenance and repair of pipeline systems; Construction of structures for the transportation of natural gas; Installation services of storage tanks [structures], not of metal; Repair and maintenance of thermal storage instruments [solar energy] for heating; Construction of industrial furnaces; Construction; Installation of fittings for buildings; Pipeline installation and repair; Servicing of manufacturing machines and apparatus; Installation services of steel buildings; Installation services of hVAC systems (heating, ventilation and air conditioning); Installation services of pumps [machines]; Installation services of industrial boilers; Repair and maintenance of hVAC systems (heating, ventilation and air conditioning); Pump repair; Servicing of pipelines; Locksmithing [repair]; Installation services of pressure water tanks
40
Metal tempering; Soldering; Chromium plating; Rental of welding apparatus; Metalworking; Cadmium plating; Abrasion; Welding services; Stripping finishes; Galvanization; Tin plating; Metal plating; Nickel plating
42
Technical testing services; Provision of information relating to industrial engineering; Industrial testing of engineering works; Preparation of technical reports; Engineering services for the design of structures; Technical supervision and inspection; Industrial testing; Engineering project studies; Materials testing and evaluation; Quality control testing services for industrial machinery; Testing, analysis and evaluation of the services of others for the purpose of certification; Preparation of engineering reports; Testing, analysis and evaluation of the goods of others for the purpose of certification; Engineering services; Mechanical engineering; Pipeline inspection services; Testing the functionality of apparatus and instruments; Advisory services relating to industrial engineering; Technical measuring and testing; Technical design and planning of pipelines for gas, water and waste water; Conducting of quality control tests; Material testing for fault detection; Advisory services relating to design engineering; Technical inspection services; Testing services for the certification of quality or standards; Materials testing and analysing; Certification [quality control]; Testing the functionality of machines; Surveying; Quality checking; Surveying of defective structures