The first small letters z, s mean the direction of lays in the rope. The direction of wires in the strands – left, right – is respectively designated with characters Z and S following the character describing the direction of lays in the rope.
The co-related directions arrangement in the strands and the rope is designated as follows:
- 1) Left lang (LL) – The direction of wires in the lay and lays in the rope is left, the arrangement is designated sS
- 2) Right lang (RL) – The direction of wires in the lay and lays in the rope is right, the arrangement is designated zZ
- 3) Left regular (LR) – The direction of wires in the lay is right and the lays in the rope is left, the arrangement is designated zS
- 4) Right regular (RR) – The direction of wires in the lay is left and the lays in the rope is right, the arrangement is designated sZ
