No. Copying the appearance of a product is an infringement. For rights protection, a work registration certificate is helpful, but it is not the only way.
1. Work registration is a legal certification that can be used to prove the original author of the product appearance and increase evidence for rights protection.
2. You can consider applying for a design patent. Appearance patents can provide legal protection for product appearance and prevent others from unauthorized imitation.
3. Regularly monitor the market and take legal measures to protect your rights and interests if you find someone is infringing.