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About product and suppliers:
        Alibaba.com offers 7,094 tyre stem products. About 1% of these are bicycle stem, 1% are other toys & hobbies. 

A wide variety of tyre stem options are available to you, such as aluminum, plastic, and steel. You can also choose from free samples, paid samples. 

There are 7,094 tyre stem suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of tyre stem respectively. 

Tyre stem products are most popular in South America, North America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 971 with ISO9001, 277 with ISO/TS16949, and 247 with Other certification.