Bevel and bevelspur gears and gearing, for machinery (excl. friction gears, gear boxes and other speed changers)
Gears and gearing, for machinery (excl. friction gears, spur, helical, bevel, bevelspur gears and gearing and worm gear, gear boxes and other speed changers)
Spur and helical gears and gearing, for machinery (excl. friction gears, gear boxes and other speed changers)
Worm gear for machinery (excl. friction gears, gear boxes and other speed changers)