Ningbo Siming Automotive Co., Ltd (the original Siming Enterprise) is located in the provincial innovation science and technology industrial park zone- Ningbo Wangchun Industry Park. Siming was founded in 1995, focused on safety valve business. Now it developed into a scaled enterprise which owns product research and development, marketing and manufacturing of tire safety parts.Now we have three major products groups, tire valve, wheel weights and wheel spacers. Tubeless snap-in rubber valves, monthly production of more than 10 million pieces, ranks top three of domestic counterparts. More than 80% of the products are exported to America and European countries, as well as supplying many OEM cars factories of joint venture brands and domestic brands in China.We focus on tire safety accessories such as valves, wheel weights for more than 20 years. We are national standard makers of valve, and have been involved in the revision and updating of national standards, have a range of valves and wheel weights of various national invention and utility model patents. Our research and development capability within the tire security field is forefront. Using advanced automotive equipments that we created by ourselves, continuously guarantee to offer the products of reliable quality, stable performance and safe using to customers. We were certified by ISO/TS16949:2009 quality system. We strictly implement the international ETRTO standards during production to get recognition and trust of high-end professional customers in Europe and America.