Lay of Wire Rope:

The lays of wire ropes, with few exceptions, are divided roughly into two kinds-Regular lay and Lang’s lay.

1. Regular lay, in which the stands are twisted in one direction, and the completed strands are laid up in the opposite to make the rope. This gives an outward appearance of the wires being parallel to the axis of the rope
2. Lang's lay, in which the strands are laid up to form the rope in the same direction as the wires are twisted to make the strand. This gives an outward appearance of wires being diagonal to the axis of the rope.

The advantage of using Lang's lay is that such a rope as constructed offers a better wearing surface when in use, and therefore, can be reasonably expected to serve for a longer period than Regular lay rope.
Regular lay rope is more flexible than Lang's lay rope and easily spliced. There are tow kinds of direction of lay-right hand and left hand-as shown below.

Combined with regular lay and Land’s lay, they form
No.1 Right hand regular lay.
No.2 Left hand regular lay.
No.3 Right hand Land’s lay.
No.4 Left hand Lang’s lay.
The right hand lay is the most popular.

Wire Tensile Level:
Division by based on J.I.S.
Grade E 1320N/mm² (135kgf/mm²)
Grade G 1470N/mm² (150kgf/mm²)
Grade A 1620N/mm²(165kgf/mm²)
Grade B 1770N/mm² (180kgf/mm²)
Extra Class based on Our company's spec. Grande T 1910N/mm² (195kgf/mm²)

Wire testing room		Stranding machine
Closing machine		Inspecting department