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About product and suppliers:
        Alibaba.com offers 7,496 steel back door products. About 3% of these are doors. 

A wide variety of steel back door options are available to you, such as aluminum alloy, solid wood, and plastic. You can also choose from entry doors, sliding doors, and security doors. As well as from exterior, interior, and commercial. And whether steel back door is swing, sliding, or folding. 

There are 7,592 steel back door suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Pakistan, which supply 98%, 1%, and 1% of steel back door respectively. 

Steel back door products are most popular in Domestic Market, Western Europe, and North America. 

You can ensure product safety by selecting from certified suppliers, including 4,447 with Other, 4,053 with ISO9001, and 461 with ISO14001 certification.