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About product and suppliers:
        Alibaba.com offers 4,609 door security bar products. About 5% of these are locks, 1% are other door & window accessories, and 1% are access control system. 

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

There are 4,604 door security bar suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 99%, 1%, and 1% of door security bar respectively. 

Door security bar products are most popular in Mid East, North America, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,650 with ISO9001, 993 with ISO14001, and 935 with OHSAS18001 certification.
        
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