Material: 95% Alumina, Zirconia Ceramics Application:hair dividers, crimping iron, rollers, perm rollers, electric ply wood, 1)Material:Corundum, mullite, corundum alumina, 95 ... for health4)Application widely used for hair dividers, crimping iron, rollers, perm rollers, straight hari dividers, electric ply wood, etc nursing electrical ...