Welding electrodes; Welding machines for use in the jewellery trade; Welding torches (electric); Welding torches (gas-operated); Welding apparatus operated by oxyacetylene; Welding apparatus operated by gas; Welding apparatus for tig welding (gas-operated); Regulators for use in welding machines; Metal welding machines (gas); Metal welding machines (electric); Metal welding apparatus (gas); Metal welding apparatus (electric); Machines for welding (gas); Machines for welding (electric); Machines for resistance welding (gas operated); Gas welding apparatus; Gas welding machines; Electrodes for arc welding; Electrodes for welding; Electrodes for welding machines; Arc welding electrodes; Consumable electrodes for use in welding; Electric arc welding apparatus; Electric welding apparatus; Electric welding guns; Electric welding instruments; Electric welding machines; Electric welding torches; Electric wire welding apparatus, other than machines; Electrode or filler wire feeders (parts of electric arc welding apparatus); Laser welded machine tools; Welding apparatus, gas-operated; Welding apparatus, electric; High frequency welding machines; Electrical arc welding apparatus; Apparatus for electric welding; Apparatus for the welding of materials; Arc welding apparatus