... /2.8/3.0mmMaterial: Aluminum AlloyInner coating: Two or three layers of nonsitck coating, such asWhitford, Darkin, Dyflon, Teflon ... Plastic/wooden/silicon/stainless steel6) Interior: 2layers or 3layers of nonstick coating, such as Whitford, Dupont, Darkin, Dyflon, Teflon, ... .7) Exterior: Polished, heat resistant paint, powder coating or marble coating.8) Bottom: Digital cutting bottom/CD base/induction ...