7 PARTS AND FITTINGS FOR MACHINERY - NAMELY, ENGINE VALVE SPRINGS, [ FUEL INJECTOR SPRINGS, ]VALVE ACTUATOR SPRINGS FOR PROVIDING MECHANICAL FORCE WITHIN PRESSURE RELEASE VALVES IN PROCESSING PLANTS, CLOCK TYPE SPRINGS FOR RECOILING OR TENSIONING HOSES AND CABLES ON FORK-LIFT TRUCKS AND RECOILING OVER-HEAD HAND OPERATED POWER TOOLS ON ASSEMBLY LINES, [ AGRICULTURAL LINKS AND GRADER SCREENS; ]PARTS AND FITTINGS FOR AIR AND SEA VEHICLES - NAMELY, ENGINE VALVE SPRINGS, [ FUEL INJECTOR SPRINGS, ]VEHICLE SUSPENSION (STABILIZER) BARS, VEHICLE BRAKE ACTUATOR SPRINGS, RAILWAY BOGIE SPRINGS, VALVE ACTUATOR SPRINGS, CLOCK TYPE SPRINGS, [ TRANSMISSION AND CLUTCH SPRINGS, ]TORSION BARS; [ AND FUEL INJECTOR SPRINGS FOR LAND VEHICLES ]