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Pipework and plumbing installation contractors, marine
Chimney inspection services, closed circuit television (CCTV)
Cooling tower design and construction contractors, brick or concrete
Auxiliary services, chimney construction
Plastic floor coverings
Acetylene gas generators
Fertiliser production plant, nitrogenous
Fertiliser production plant, potassium
Fertiliser production plant, phosphorus
Fertiliser production plant, fishmeal and fish by-products
Fertiliser production plant, seaweed
Fertiliser plant, conversion of refuse
Compound fertiliser plant
Crushers and mills, fertiliser production
Mixers and blenders, fertiliser production
Drying plant and equipment, fertiliser production
Sifters, fertiliser production
Granulators, fertiliser production
Hydrogen generators
Hydrogen production plant, non-electrolytic
Nitrogen generators
Nitrogen production plant
Ozone generators/ozonisers
Oxygen production plant
Carbon dioxide production plant
Sulphur dioxide production plant
Acetylene production plant
Noble gas production plant
Argon production plant
Nitrogen liquefaction plant
Hydrogen liquefaction plant
Helium liquefaction plant
Chlorine liquefaction plant
Oxygen liquefaction plant
Air liquefaction plant
Air fractionating columns
Gas separation plant, membrane system
Air-gas mixing and proportioning machines, automatic
Technical gas bottling plant and equipment
Bleaching earth or oil separating and regenerating machines
Gas scrubbing plant
Purification plant, high purity gas
Demulsifying plant
Acid neutralisation plant, chemical industry
Acid recovery plant
Refrigerant recovery plant
Solvent recovery plant, adsorption
Solvent recovery plant, absorption
Solvent recovery plant, condensation
Solvent recovery plant, refrigeration
Solvent recovery plant, distillation
Solvent recovery plant for petrochemical processes
Solvent recovery equipment for degreasing plant
Solvent recovery equipment for paint spraying booths
Solvent recovery plant, industrial oil and fat production
Solvent recovery plant, plastics industry
Solvent recovery equipment, edible vegetable oil processing
Carbon dioxide recovery plant
Carbon monoxide recovery plant
Benzene recovery plant
Etchant recovery plant
Sodium hydroxide/caustic soda recovery plant
Copper recovery plant, chemical
Copper sulphate recovery plant
Gasoline vapour recovery plant
Hydrogen recovery plant
Pyridine recovery plant
Silver recovery plant, chemical
Silver recovery plant, X-ray material
Sodium sulphate recovery plant
Sulphur recovery plant
Sulphur dioxide recovery plant
Hydrogen purification plant, high purity
Brine purification plant, chlorine production
Pilot plant, chemical processes
Emulsifiers, hydrocarbons and water, for fuels
Gas separators by liquefaction
