The Basics A Belleville washer or disc spring is a conical-shaped spring with an open center. It is shaped much like a washer and is typically smaller than a coiled spring.
J AND R Metalwork Industry Co., Limited established in 2000 and located in Dongguan, Guangdong, China.After almost 13 years management development and technical improvement. Now, J AND R Metalwork Industry Co., Limited has become a leading supplier metalwork industry. Meanwhile,
After 13 years domestic and abroad market investigation,at present our products are sold to many countries and regions including the North America, Europe, Australia, the Middle East and Asia. J&R Metalwork Industry Co., Limited owned the advanced production equipment, complete inspection system for chemical and physical property testing. And We have been constantly strengthening our management and consummate the quality guarantee system. In 2008, we acquired ISO9001:2008 quality certification. Currently,the 5S management mode is implemented in the company.
Best quality and best service is and will be always our toppest concern.
Shanghai G&T Industry CO., Ltd is a member of Chinese Fastener Association. Our company mainly manufactures hex bolt, nut, stud bolt and other higher strength fasteners, including standard and non-standard products.
The company have full set machines & quality testing machines, products have been passed ISO:9001~2000 Quality System Certificate. we have gathered plenty experience& technology from many years production practice, and we still keep big investment on machines, progress, making technique progress. We have been the innovation and high quality as the eternal pursuit and core, in the development, manufacturing, sales of the most reliable, the most innovative fasteners as its mission, and strive to provide quality professional products and service for customers.