CCC certification mark. According to the inquiry of Foshan Louis Paul Ceramics Co., Ltd., the inspection label product packaging box should have the factory name, factory address, product name, after-sales service telephone number, specifications, quantity, trademark, production date and the implemented standards. For porcelain tiles, it is required Check the CCC certification mark and choose products with radionuclides that meet Class A requirements for ceramic tiles used in interior design and decoration.