Wire Size: 5.00mm-12.00mm Standard: EN 10270-1, ... Name: High carbon steel wires, spring steel wires, mattress spring wire, high carbon spring steel wires2. Material: Steel GradeGB StandardCarbon% ... EN 10270-1, JIS G 3521-1991, GB 4357-894. Main Markets: Argentina, South Korea, Israel, Malaysia, Pakistan, Thailand, Philippines, Sri ... : shelly_wire 82B Rolling Shutter Doors High Tension Spring Steel Wire