It can be used, but you need to register first. Wudalang Shaobing is a trademark. If you want to use it as your own brand, you need to register the trademark first and obtain the right to use the trademark. Trademark registration needs to comply with relevant laws and regulations, including requirements for trademark independence, distinctiveness, and distinguishability. If your trademark complies with relevant regulations and obtains a trademark registration certificate, you can legally use the trademark as your own sign.