纳米晶磁芯资料，由秦皇岛燕秦纳米科技公司提供，同于准备开发大功率高频电源。-Nanocrystalline core materials, by the Qinhuangdao Yan Qin nanotechnology companies, with the development of high-power high-frequency power in preparation.

Some basics of nano technology.good explanation