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About product and suppliers:
        Alibaba.com offers 1,380 used metal security doors products. About 57% of these are doors, 5% are seals, and 2% are locks. 

A wide variety of used metal security doors options are available to you, such as entry doors, sliding doors, and security doors. You can also choose from steel, glass, and stainless steel. As well as from exterior, interior, and garden. And whether used metal security doors is swing, sliding, or automatic. 

There are 1,384 used metal security doors suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Turkey, which supply 98%, 1%, and 1% of used metal security doors respectively. 

Used metal security doors products are most popular in Mid East, Domestic Market, and North America. 

You can ensure product safety by selecting from certified suppliers, including 328 with ISO9001, 306 with Other, and 137 with ISO14001 certification.