... 5mm Use for making Bed spring wire, Spring steel wire, Rope making wire, Tyre wire, Spoke wire, High carbon steel ... diameter: 0.25mm - 5.5mmSurface: black color, surface smooth, phosphated and lead patent heat treatmentPackaging Details: packing coil, plastic spool, reel bag ... , drum, carton and so on or according to the customer requestDelivery time: 15 ...