Specification Diameter: 5.5mm-14mm Weight of coils:50kgs or as your requirement Certificate ISO9001-2008 Type Low Carbon; Middle Carbon; High Carbon Material Q195,Q215,Q235B,E235B,C45,C50,C55,C60,C65,C70,C75,65Mn,C72A,C72B,C80,C82B,SAE65,SAE70,SAE1006,SAE1008,SAE1010,SAE1015,SAE1018,65Mn,CT9A,GCr15, AND SO ON Kinds of Product Spring Steel Wire; Cold -drawn Non-alloy Steel Wire For Springs;Carbon Steel Wires;Umbrellastand Wire; Steel Wires for Spoke; Mild Steel Wire for Important Purposes; Low Carbon Steel Wire for General Uses; Carbon Constructional Quality Steel Wires; Wire for Steel Wire Ropes Use; Galvanized Steel Wire rope; Copper Coated Steel Wire Rope etc. Tolerance 1:Diameter: �±0.001 Tensile strength 1400--3520 b/MPa Usage Use for making Bed spring wire, Spring steel wire, Rope making wire, Tire wire, Spoke wire, High carbon steel wire, Low carbon steel wire, Cold drawn steel wire, Heat drawn steel wire, Free cutting wire, Border wire (may straightening and straight ruler) Packing packing coil, plastic spool, reel bag, drum, carton and so on or according to the customer request trade term FOB; CNF; CIF