1. authorization: In order to ensure that you have the copyright and authorization needed to sell IP cards, this will involve negotiating with the relevant copyright owners or authorized agencies and obtaining permission.
2. originality of design: ensure that the design of IP card is original and does not infringe anyone else's intellectual property rights.
3. Manufacturing and sales: It is necessary to find a legal manufacturing company to produce cards and cooperate with legal sales channels to ensure that products can be widely sold.
4. Maintain quality: Ensure that the quality and design of the card are attractive enough to keep consumers interested.
5. Safeguarding the law: We should abide by relevant commercial and intellectual property laws, such as patent law, trademark law and copyright law.