Galvanized sheet import customs clearance procedures have what information

Processing method (by coating, by coating, by coating), packing list, contract, bill of lading, invoice, declaration declaration, import and export rights, entry goods customs clearance, GTIN, Chinese or foreign language names, declaration declaration declaration, CAS, material (iron, non-alloy steel), composition content (iron, carbon, alloy element, non-alloy element content) and so on