... 5mmx40-250mm Black color cold rolled high carbon 65Mn steel strip,cold rolled steel strip 65Mn , high carbon steel strip 1) Material : 50# 65Mn2 ... , woodworking band saw, automatic clutch patch, reeling shutter spring steel strip ( round edge),horologe clockwork spring , lock making , shoes ... spin , standard stamping ,packing strip and other industrial -used steel strip. Sarah shi(+86)15053979735