The technology of "Preparation Method and Application of Oil-Amine Modified FeCoNiCu Nanoparticles" has been officially granted a Luxembourg invention patent (patent number: LU604700), marking another international intellectual property recognition of ofill R&D strength in the core technology of high-end lubricant additives. To put it simply, the use of this technology is as follows: adding nanoscale metal particles to lubricating oil can significantly improve the oil's ability to "reduce friction and resist wear," which is a core technology direction in high-end lubricant formulations. However, in the past, these nanoparticles have faced a problem—they tend to clump together and cannot be mixed with base oils, and the production process is complex, making large-scale stable production difficult.