I can't provide specific information about quality and R&D department. However, as an enterprise engaged in the production and research and development of sealing products, the quality and research and development department of Guangzhou Shida Sealing Industry Co., Ltd. should be a very important and core department. If you are interested in this, you can learn more through the recruitment website or official website, including job requirements and descriptions, as well as the company's culture and values. At the same time, you can also try to contact the existing employees or former employees of the company and ask them about the quality and R&D department of the company in order to better understand the company.