Paint spray guns; spray guns; spray guns [machines]; air spray guns; supports for spray guns for paint; air brushes [paint spraying]; air brushes; air brushes for applying colour; compressors; air compressors; pneumatic air tools; air powered tools; compressed air tools; air blowers; air blowing machines; air filters for mechanical purposes; pressure regulating apparatus being parts of machines; pressure reducing valves [parts of machines]; pressure controllers [regulators] being parts of machines; couplings for pneumatic apparatus; separators; water separators; oil separators; centrifugal separators; cyclone separators