... /wooden/silicon/stainless steel6) Interior: 2layers or 3layers of nonstick coating, such as Whitford, Dupont, Darkin, Dyflon, Teflon, Xyflon ... on.7) Exterior: Polished, heat resistant paint, powder coating or marble coating.8) Bottom: Digital cutting bottom/CD base/induction bottom9 ... non-stick effect, after one food is done, just wipe off with cleaning cloth, wash after all food is finished and the pan ...