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About product and suppliers:
        Alibaba.com offers 13,093 u lock products. About 14% of these are locks, 12% are bicycle lock, and 1% are door & window bolts. 

A wide variety of u lock options are available to you, such as steel, copper. You can also choose from free samples, paid samples. 

There are 13,458 u lock suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 97%, 1%, and 1% of u lock respectively. 

U lock products are most popular in Domestic Market, North America, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 2,659 with ISO9001, 695 with Other, and 617 with ISO14001 certification.