Process and Handle wire, cable, conduit, fittings and fasteners, insulation, electric control components, motors; soldering, welding and brazing materials and gas supplies; paint, solvents and cleaning materials, lubricants, ink; natural and refrigeration gases, mercury, chlorine; acids, abrasion materials, electrical/electronic computer equipment and parts. Inspect, fabricate, install, repair, modify, calibrate, adjust, test, perform preventative maintenance and service mill equipment, high voltage power distribution, electrical, electronics (including computers and microprocessor-based controllers), communications, recording/control, combustion equipment.