... ) Thickness: 0.1-3.0mm 3) Width: 3-80mm Carbon Steel Coil Spring1) Material: 62Si2MnA, 65Mn, SK3,SK4, SK5, SUS301,3042 ... ,(ie. garden hose reels, balancer, Retractable Dog Leash, Ink Liner, Measuring Tape,meters and toys, cars safety belts, gas, diesel oil , electrical ... in producing springs for various kinds of carbon and stainless steel products and supplies high elastic and heat treatment stainless ...