Julang and Yun Yun.

1. Due to the long-term development and popularity of Zhuolang Hulusi, in order to meet the needs of publicity and inheritance, we also focus on the protection of intellectual property rights. In 2010, I applied to the State Administration for Industry and Commerce to register a trademark and was approved for registration at the end of 2011.

2. Yunyun was founded by his master in 1998 and was managed by Li Jian in 2000. It has been focusing on the research of cucurbit silk, with the strong collaboration of the older generation of artists and professionals. It gradually formed a scale. In 2008, it developed into a company, and "Yunyun" was officially registered as a trademark. It is also the first musical instrument factory in Kunming that develops into a company and uses cucurbits as its main body.