Steel Coil 1)Size:20 - 270mmx 0.18 - 2.5mm 2)Material:C50,C67,1075,SK5 3)Usage:Shutter spring, band saw, tools, cluth,ect Steel Coil:1) Color: white, yellow, blue, grey2) Used for producing various products, such as saw, automobile clutch, clockwork spring, band saw, darby, deep draw, barrette, chemical industrial mechanism, textile, standard parts and blade 3) Superior in flatness, stability, ...