Apparatus for mechanised welding (other than electric); autogenous welding apparatus (gas operated); autogenous welding machines; electric machines for incandescent welding; electric machines for resistance welding; electric machines for spark welding; electric radiator welding machines; electric resistance welding machines; electric track welding machines; electric welding machines; electrofusion welding machines; gas welding apparatus; gas welding machines; gas welding machines; high frequency welding machines; hot air welding machines; machines for resistance welding (gas operated); machines for welding (electric); machines for welding (gas); machines for welding corners on PVC window frames; metal welding apparatus (gas); metal welding machines (electric); metal welding machines (gas); plasma welding apparatus (gas-operated); plasma welding machines; plastics welding machines; regulators for use in welding machines; robotic electric welding machines; robots for welding; single column welding presses; spot welding machines; thermal contact welding machines; thermal impulse welding machines; ultrasonic welding heads; ultrasonic welding machines; welding apparatus for TIG welding (gas-operated); welding apparatus operated by compressed air; welding apparatus operated by gas; welding apparatus operated by oxyacetylene; welding apparatus, electric (machines); welding apparatus, gas-operated; welding machines for thermoplastic tubes; welding machines for use in the jewellery trade; welding machines for welding plastics material; welding machines, electric; welding torches (gas-operated); wire welding machines; pneumatic apparatus for maintaining atmospheric environments; spark arrestors being parts of machines; apparatus (machines) for filtering gases; apparatus for the condensing of solvent gases; compressors for recovering and recycling refrigerant gases; filters for hot gases for use with internal combustion engines; abrading tools for use with machines; abrasive discs (machine tools); abrasive tools being parts of machines; adapters for machine tools; air driven hand tools; air operated tools; air powered tools; apparatus for holding machine tools; apparatus for powering high frequency tools; automatic machine tools; automatic tool changing apparatus for machine tools; boring tools (machine tools); deburring tools (parts of machines); guns (tools using explosives); hand held power operated tools; machine tools for sale in kit form; machine tools for spark-eroding; machine tools for tube working; machine tools for use in connection with pipes; mechanical handling apparatus for use with machine tools; mechanical tools; motor driven tools