上海核工碟形弹簧制造有限公司
Shanghai Hegong Disc Spring Manufacturing Co., Ltd., subordinated to
China National Nuclear Corporation (CNNC), It is a military project
enterprise specialized in manufacturing disc springs. It is also a member of
Chinese General Machine Components Industry Association. It is products to be included Usual Disc spring（DIN2093）、Wave spring、Disc spring cushion
（DIN6796）
Website：www.hegong.com