9 Measuring, signaling, checking and supervision apparatus and instruments, namely, instruments for controlling and regulating dc/ac motors, [ visual welding controlling systems composed of cameras, ] LCD video display monitors, electronic programmable logic controllers; pressure measuring apparatus and precision measuring apparatus, namely, instruments for measuring pressure, flow, temperature, heat, speed, acceleration, distance, resistance, current, voltage; electric welding equipment, namely, MIG/MAG hand welding torches, TIG hand welding torches, MIG/MAG robotic and automatic welding torches, TIG robotic and automatic welding torches, robotic and automatic laser welding torches, hand plasma welding and cutting torches, robotic and automatic plasma welding and cutting torches, fume extraction welding torch systems composed of fume extraction welding torches, extraction nozzle, extraction hose, extraction adapter; push pull welding torches, hybrid welding torches, dual and tandem welding torches; [ welding masks, welding helmets; ] electric blow torches, namely, welding torches; welding electrodes; cables, namely, coaxial cables, electric cables, water cooled power cables, gas cooled power cables; components of welding torches, namely, cables and cable assemblies for delivery of gas or water; cables for electrical or optical signal transmission; connecting apparatus, namely, cable and electric connectors, apparatus for conducting, distributing, transforming, accumulating, regulating or controlling electric current; [ namely, current rectifiers, current converters, transformers, power supply units, servo amplifiers, electronic servo motor controllers; voltage regulators, electric couplings; instruments and machines for testing materials, namely, metal integrity testing device, weld integrity testing device; ] component parts and replacement parts for the above devices, namely, interconnection cables, gas diffusers, nozzles, fume extraction devices, wire guide for different wire types, coupling for water and gas, electric switches, electric cables, contact tips, welding torch connectors