1) material : 50# 65mn 2) color: black, bright, blue, yellow 3) specification : thickness : 0.3-2.5mm Width : 40-230mm 4)hardness:46-50 5) 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, and other industrial-used steel strip. If you are interested in our products, please feel free to contact me. Thanks Package: oiled, plastic film inside, sackcloth outside , pallet or as for your requirement