This group of steel wire are from low carbon steel wire rods (JIS G3505; SWRM), which are subjected to a cold drawn process to reduce their

These wire rods are JIS G 3503 grades SWRY 11 (0.09% max carbon) and SWRY 21 (0.10-0.15% carbon), the most commonly used is grade SWRY 11.

This group of wire rods has a wide range of uses. It is cold-drawn and then cold-formed into a workpiece at room temperature This will make the header larger

This group of wire rods are made from high carbon steel wire which will be cold drawn to produce 3 groups of steel wires: