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Welded Square tube2
Video Description
Follow along for a hands-on demonstration of black annealed hollow section welded square tube for engineering. In this video, we walk through the ERW forming process, show close-up surface and weld quality, compare SHS and RHS sizes, and demonstrate cutting, drilling, and welding behavior. You'll see real application examples in steel structures, curtain walls, furniture, and vehicle frames, plus practical handling and storage tips for B2B buyers.
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