Carbon Steel Coil Spring 1) Material: 62Si2MnA, 65Mn, SK3,SK4, SK5, SUS301,304 ... : 0.1-3.0mm 3) Width: 3-80mm Carbon Steel Coil Spring1) Material: 62Si2MnA, 65Mn, SK3,SK4, SK5, SUS301,3042) Thickness ... use all kinds of home appliances uesed auto recover of wire (ie. Vacuum Cleaner, electric cooker, Electric drier, Electric water bottle ...