7 PORTABLE PIPE CUTTING, BEVELING AND MACHINING SYSTEMS, COMPRISING PORTABLE LATHES, CUTOFF DEVICES AS MACHINE TOOLS, MACHINE TOOL BITS AND PARTS FOR THE FOREGOING; PNEUMATIC POWER TOOLS, HYDRAULIC POWER TOOLS AND ELECTRIC POWER TOOLS FOR MACHINING METAL AND PLASTIC; NAMELY, PORTABLE PIPE BEVELING MACHINES, PORTABLE LATHES AND CUTTING TOOLS FOR PIPE AND TUBING, AND REPLACEMENT PARTS FOR THE FOREGOING, NAMELY, TOOL BITS, MANDRELS, COLLETS, ADAPTORS, CUTTING HEADS, TRACKING TOOLS AND GROOVING TOOLS; AND HYDRAULIC POWER SUPPLIES FOR POWER TOOLS, WHICH COMPRISE ELECTRICALLY POWERED PUMPS TO PROVIDE HYDRAULIC POWER; PIPE LATHES, TOOL BITS FOR PIPE LATHES, BEVELING AND MACHINING HEADS FOR PIPE LATHES, POWER DRIVE HEADS FOR PIPE MACHINING TOOLS AND HYDRAULIC POWER SOURCES; MACHINE TOOL BITS FOR CUTTING METAL AND NON-METAL MATERIALS; MACHINE TOOLS, NAMELY, PORTABLE MACHINE TOOLS FOR ON-SITE MACHINING AND REPAIRING OF PIPE FLANGES, TUBE FLANGES, PIPE FITTINGS, VALVES, VESSELS, HEAT EXCHANGERS, HEADERS, SUPER HEATERS, ECONOMIZERS, PUMPS, BASES FOR PUMPS, BASES FOR VESSELS, BASES FOR HEAT EXCHANGERS, BASES FOR HEADERS, BASES FOR SUPER HEATERS, BASES FOR ECONOMIZERS, AND VALVE PARTS; AND REPLACEMENT PARTS THEREFOR