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About product and suppliers:
        Alibaba.com offers 18,771 long structure products. About 10% of these are steel structures, 2% are multi-span greenhouses, and 2% are metal building materials. 

A wide variety of long structure options are available to you, such as aisi, gb, and bs. You can also choose from steel structure bridge, steel fabricated house, and steel structure platform. As well as from heavy, light. And whether long structure is 6000 series, q235, or 10#. 

There are 18,771 long structure suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of long structure respectively. 

Long structure products are most popular in Domestic Market, Mid East, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 7,703 with ISO9001, 3,183 with Other, and 2,780 with ISO14001 certification.
        
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