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About product and suppliers:
        Alibaba.com offers 24,186 door bolt lock products. About 30% of these are locks, 3% are door & window bolts, and 1% are access control system. 

A wide variety of door bolt lock options are available to you, such as free samples, paid samples. 

There are 24,118 door bolt lock suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 97%, 1%, and 1% of door bolt lock respectively. 

Door bolt lock products are most popular in Domestic Market, North America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 7,725 with ISO9001, 3,051 with ISO14001, and 2,508 with OHSAS18001 certification.