Established in 1988, Ningbo Yinzhou Haixin Tire Valve Co., Ltd. is a specialized manufacturer of tire valves for inner tubes, tubeless tires and valve accessories. Owning automatic high and low pressure leak testing machine, ozone-resistant testing machine, high and low temperature ageing-resistant testing machine, we are able to produce 6,000,000 tire valves, 2,500,000 inner tubes and 3,500,000 tubeless valves each month, and the annual capacity is going to be increased by 15%. Meanwhile, our...
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