Public welfare projects include voluntary labor to serve the public, such as taking children to participate in activities in nursing homes or taking children to participate in activities in welfare homes. In short, participating in such activities can cultivate children's love and dedication, and public welfare activities can exercise their own abilities, and at the same time, it is convenient for you to know more about society.

Legal basis:

"Standardization Law of People's Republic of China (PRC)" (hereinafter referred to as "Standardization Law") Article 2 Standards (including standard samples) mentioned in this Law refer to technical requirements that need to be unified in agriculture, industry, service industry and social undertakings. Standards include national standards, industry standards, local standards, group standards and enterprise standards. National standards are divided into mandatory standards and recommended standards, while industry standards and local standards are recommended standards. Mandatory standards must be implemented. The state encourages the adoption of recommended standards.