7 Gear boxes other than for land vehicles; one-way clutches other than for land vehicles; clutch mechanisms other than for land vehicles; torque limiters being overload clutches other than for land vehicles; rotary dampers for shock absorbing being shock absorbers for machines; deceleration devices being brakes for machines and reduction gears other than for land vehicles; parts of machines, namely, blades, couplings, bearings, gears, cam sprockets, belt pulleys, cams, brakes, springs and shock absorbers, all the aforementioned goods other than for land vehicles; machine parts of air vehicles and water vehicles, namely, blades, couplings, bearings, gears, cam sprockets, belt pulleys, cams, brakes, springs and shock absorbers; crushing machines