Street Address: No. 89 Jiuye Road , Qingpu Industrial Park
City: Shanghai
Province: Shanghai
Country/Region: China
FAW, Dongfeng, Yu Tong, Jin Long
Product Name: Self-Locking And Anti-Loosening Nut Typical Clients: FAW, Dongfeng, Yu Tong, Jin Long Designed Capacity : 100 M pcs/year Available Capacity : 50% This product was based on US patent 4, 171, 012, 4074950 and US Military standard Mil- N- 85353. Initially, This technology was used in rocket engine for Space Shuttle in early 80’s. Gradually, It is used widely in auto and many other mechanic industries in US, Then around the world. It is now well accepted in China mechanic industry. Up to today, SDPF is the only Chinese company which can make this product fully met US Standard.