Yangzhou Hewei disc spring manufacturing Co. Ltd., founded in 1984, is a professional manufacture of disc spring manufacturers, 2009, identified as high-tech enterprises, but also China General Machine Components Industry Association named the "independent innovation advanced enterprise", "specialized, refined, special industry demonstration enterprise", a member of China general parts industry spring China Association and professional association. In the past 30 years, for the nuclear power plant, the Three Gorges Project underwater generator, manned ¡­¡­.