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About product and suppliers:
        Alibaba.com offers 19,742 door contact products. About 25% of these are alarm, 1% are electrical contacts and contact materials, and 1% are springs. 

A wide variety of door contact options are available to you, such as door, smoke. You can also choose from free samples, paid samples. 

There are 19,742 door contact suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of door contact respectively. 

Door contact products are most popular in North America, Mid East, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 4,492 with ISO9001, 757 with Other, and 544 with ISO14001 certification.