Ningbo Yinzhou Haixin Tire Valve Co., Ltd was established in 1988. We own advanced equipments such as automatic high and low pressure leak test machine, ozone-resistant test machine, high & low temperature ageing-resistant test machine and so on. We produce all kinds of tire valves for inner tubes, tubeless tires and valve accessories. Nowadays we export our tire valves to many countries in the world. For instant, we mainly offer our inner tube valves with natural and butyl rubber to some famous tire factories in Thailand, Malaysia, Indonesia, India, South America and East Europe. Tubeless valves with EPDM rubber are mainly supplied to high markets like U.S.A and Europe and natural ones to different markets such as Middle East, Brazil and South East Asia and so on. Quality Highest & Customers Satisfied is the policy of our company and Honest & Belief, Responsible is the management ideology of us. We manufacture approximately total 6 million tire valves every month, including 2.5 million inner tubes and 3.5 million tubeless valves. We aim to have sales growth by 15% of each year. We achieved ISO 9001 in 2000 for the high efficient management and good quality. In October 2004 we also get the TUV ISO 9001:2000 Certificate approved by German Rheinland xxxxx However we will keeping improving ourselves and provide better quality and services to all customers.