Exhaust valves for land vehicle engines, [ connecting rods for land vehicles engines, ] piston cooling jets for vehicle engines

[ Automobiles, trucks, motorcycles; brakes for land vehicles, brake linings for land vehicles, brake shoes for land vehicles, brake segments for land vehicles; ] non-return valves for land vehicle brakes, over pressure valves for land vehicle brakes, bleed screws for braking circuits of land vehicles, valve spools for gearbox of land vehicles, [ shock absorbing springs for land vehicles, suspension shock absorbers for land vehicles, transmission shafts for land vehicles, torsion bars for land vehicles, connecting rods for steering and suspension of land vehicles, connecting rods for land vehicles, which rods are outside of the motor of the vehicle, ] hydraulic circuits for hydraulic pumps for power steering units in land vehicles [, hydraulic circuits for master cylinders for land vehicle brakes ]