ChuangValveCoreCo.,LTd.Established in 1999,as the world's valve core manufacturing base,annually produces 1.2 billion tire Valve cores,100 million auto&household air-conditioner valve cores,which Takes up about 35% of global share.Tongchuang also specializes in variety of Special purpose cores,such as liquid petroleum gas valve cores,nitrogen spring Valve cores,extinguisher valve cores,TPMS special cores,environmental-friendly Coresand air conditioner valves. Tongchuang passed ISO9001:2008&TS16949 certificate of quantity system resPectively.Due to timely delivery, high quality products,our companyWins a high reputation and trust from domestic and overseas customers.You are welcome to visit our company's website.