Arc welding apparatus [electric, other than machines]; Electric arc welding apparatus; Arc welding electrodes; Consumable electrodes for use in welding; Electric welding apparatus; Electric welding guns; Electric welding instruments; Electric welding torches; Electrical arc welding heads; Electrical welding instruments; Electrodes for arc welding; Electrodes for electric welding; Electrodes for welding; Finished welding tips; Flux coated welding electrodes; Goggles for personal protection in the course of welding; Laser welding apparatus; Laser welding devices; Power sources for arc welding; Power sources for electric arc welding; Power sources for welding apparatus; Pre-recorded instructional video tapes relating to pipe welding; Pressure welding dip switches; Protective shields for welding operatives; Radiator welding apparatus (electric arc-); Robotic electrical welding apparatus; Spot welding apparatus [electric]; Tubular welding electrodes [electric]; Welding apparatus (Electric arc -); Welding apparatus, electric; Welding apparatus (electric arc-); Welding apparatus, electric [other than machines]; Welding current generators; Welding electrodes; Welding helmets; Welding machine control apparatus; Welding masks; Welding torches; Welding torches [electric]; Wire welding apparatus (electric-), other than machines.;