Blue Steel strip 1)Material : 50# 65Mn 2)Color: black, bright,blue, yellow 3)Specification : thickness : 0.3-2.5mm width : 40-250mm4)Usage: all the products are used widely in tool & hardware,various mud trowel, shovel, woodworking band saw, automatic clutch patch , reeling shutter spring steel strip, horologe clockwork spring ,shoes material ,hook material, spin ,standard stamping ,packing strip ...