7
Machine tools; portable pipe cutting, beveling and machining systems, comprising portable lathes, cutoff devices, machine tool bits and parts for the foregoing; pneumatic power tools, hydraulic power tools and electric power tools for machining metal and plastic, including portable pipe beveling machines; portable lathes and cutting tools for pipe and tubing; parts for the foregoing, including tool bits, mandrels, collets, adaptors, cutting heads, tracking tools and grooving tools; and hydraulic power supplies for such tools, which comprise electrically powered pumps to provide hydraulic power; machine tool bits for cutting metal and non metal materials; plate machining tools; line boring machines; bearing journal machining systems; underwater machine tools; chain mounted mill travel portable mills; header preparation machines; flange refinishing and grooving machines; elliptical manway machining systems; air motors for driving machine tools; and shaft machining tools; weld heads, each comprising a carriage assembly, a torch assembly, cables, wires, electric motors, and gearing mechanisms; weld heads as components of welding machines; electric arc welding machines; electric welding machines, gas-operated welding machines, laser welding machines, computer controlled gas welding machines; computer controlled electric arc welding machines; weld heads, each comprising a carriage assembly, cables, wires, electric motors, gearing mechanisms, printed circuit assemblies, weld heads for GTAW (Gas Tungsten Arc Welding) and for GMAW (Gas Metal Arc Welding), and replacement structural parts for the foregoing
9
Electric arc welders; electronic controllers and computer software for welding apparatus, and replacement parts for the foregoing, namely, cable harnesses, power supplies, cooling fans, keyboards, liquid crystal displays (LCDs), control buttons, control switches, and printed circuit boards, namely, automatic voltage control (AVC) printed circuit boards, back plane printed circuit boards, host input/output (I/O) printed circuit boards, weld power current printed circuit boards, oscillation/steering printed circuit boards, single board computer (SBC) printed circuit boards, and travel and wire filler printed circuit boards
37
Construction and repair services; repair and reconstruction of fluid handling conduits, vessels and associated equipment; rental of specialized equipment for building; fluid handling conduit welding and alignment services; rental of specialized equipment for pipe and tube machining, welding and alignment