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About product and suppliers:
        Alibaba.com offers 3,336 central door locking products. About 41% of these are central locking system, 3% are locks, and 1% are doors. 

A wide variety of central door locking options are available to you, such as ce, iso9001, and fcc. You can also choose from dc 12v, dc 24v. As well as from free samples, paid samples. 

There are 3,372 central door locking suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Turkey, and Taiwan, which supply 98%, 1%, and 1% of central door locking respectively. 

Central door locking products are most popular in South America, Mid East, and North America. 

You can ensure product safety by selecting from certified suppliers, including 914 with ISO9001, 229 with ISO/TS16949, and 147 with Other certification.