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About product and suppliers:
        Alibaba.com offers 61,417 steel roof structure products. About 19% of these are steel structures, 6% are prefab houses. 

A wide variety of steel roof structure options are available to you, such as aisi, gb, and astm. You can also choose from steel workshop, steel fabricated house, and structural roofing. As well as from light, heavy, and sheds & storage. And whether steel roof structure is free samples, or paid samples. 

There are 61,355 steel roof structure suppliers, mainly located in Asia. The top supplying countries are China (Mainland), United Arab Emirates, and India, which supply 99%, 1%, and 1% of steel roof structure respectively. 

Steel roof structure products are most popular in Africa, Domestic Market, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 20,110 with ISO9001, 4,015 with Other, and 3,457 with ISO14001 certification.