Steel Frame, Steel Frame Structure, Space Frame manufacturer / supplier in China, offering Carbon Steel Hollow Iron Sphere Diameter 160mm 350mm 800mm Steel Ball, Q235B/Q355b Hollow Steel Spheres Iron Ball (160mm-1500mm) for Fence and Architectural Design, Customize Size Welded Hollow Steel Balls 300mm 500mm 1500mm Diameter and Thicknesses (6-50mm) and so on.
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