... 2) Thickness: 0.1-3.0mm 3) Width: 3-80mm Carbon Steel Coil Spring1) Material: 62Si2MnA, 65Mn, SK3,SK4, SK5, ... electric cooker, Electric drier, Electric water bottle Starter, electric iron,Meat grinder,timer of washing machine, fan, oven,etc...).And ... in producing springs for various kinds of carbon and stainless steel products and supplies high elastic and heat treatment stainless steel &carbon steel.