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167122 prefabricated structural steel products are offered for sale by suppliers on Alibaba.com, of which steel structures accounts for 29%, container houses accounts for 23%, and other prefab houses accounts for 15%. A wide variety of prefabricated structural steel options are available to you, such as welding, bending and cutting.You can also choose from gb, aisi and astm prefabricated structural steel,as well as from q235, light steel, and q345 prefabricated structural steel, and whether prefabricated structural steel is steel workshop, steel fabricated house, or structural roofing.