Helical springs, of iron or steel (excl. flat spiral springs, clock and watch springs, springs for sticks and handles of umbrellas or parasols, and shock absorbers of section 17)
Leafsprings and leaves therefor, of iron or steel (excl. clock and watch springs and shock absorbers and torque rod or torsion bar springs of section 17)
Springs and leaves for springs, of iron or steel, incl. flat spiral springs (excl. helical springs, spiral springs, leafsprings and leaves therefor, clock and watch springs, spring washers and other lock washers and shock absorbers and torque rod or torsion bar springs of section 17)