SYSTEMS COMPRISED OF LASER BEAM PROJECTORS, TARGETS, DETECTORS UTILIZED WITH SAID PROJECTORS, TARGETS AND DETECTORS, FOR USE IN ADJUSTING AND TESTING CONSTRUCTION EQUIPMENT AND INDUSTRIAL MACHINERY PARTS, NAMELY, SHAFTS, AXLES, RAILS, ROLLERS, LATHES AND NUMERICAL CONTROLLED MACHINE TOOLS, TUBINGS, FIXTURES, PLATFORMS, BEAMS, CRANES, AND BEARING SEATS