Robuta

https://www.wugangzysteel.com/carbon-steel-bars/A572-S355JR.html
A572/S355JR Carbon Steel Bar A572 steel bars are lightweight, but have good strength, ductility and workability, making them ideal for structural applications....
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https://www.wugangmetals.com/Steel_Coil.html
Steel Coil Wugang Steel Group Co., Ltd
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