Ningbo Huahui Tire Valve Factory is the professioanl supplier of tire valve, wheel balancing weights,tire repair products,etc from China. Established in 1995 and experieced line for more than 15 years.The manufacturing capacity is as below.Tubless valve   (like TR414.etc)    5 millions/month.Balance wheel weight(Fe,Zn,Lead material) 500 ton/month.Tire repair tool(tire gauges,etc)    1,000,000 pcs/month .Tire repair patch and string          5,000,000 pcs/month.Valve accessories (like cap,etc)      10,000,000 pcs/month . We have already obtained both the certificate of ISO: 9001 and TUV ISO 9001:2000 certificate approved by German Rheinland Group Successively. Up to now,we are under getting the certificate of ISO / TS 16949. 85 % are exported to overseas markets such as USA, Europe, Russia, South America, Southeast Asia.etc and owned a good reputation.Strictly supervise the quality of every procedure from purchasing raw materials to dispatching products, we have already established a full set of perfect quality insurance system according to international standard.