中密控股：目前公司暂时没有磁性液体密封的研发，但已经做了一些相关的技术储备

Group 1 - The company, Zhongmi Holdings (300470.SZ), has received inquiries regarding the research and development of magnetic liquid sealing [1] - The company stated that magnetic liquid sealing is a specialized sealing method and currently does not have ongoing R&D in this area [1] - However, the company has made some technical reserves related to magnetic liquid sealing [1]