Steel Coil 1)Width:20 - 270mmX0.18 - 2.5mm 2)Material: C50, ... , 1075 3)Usage: shutter spring, band saw, clutch,ect Steel coil:1) Color: white yellow, blue, grey2) Used for producing various ... clutch, clockwork spring, band saw, darby, deep draw, barrette, chemical industrial mechanism, textile, standard parts and blade 3) Superior in flatness ...