Made from ASTM A500 Grade A (American US Standard Mild Steel)
All materials used are carefully selected to ensure the best performance and safety. The brackets are made of 4MM to 5MM steel plates, while the hollow steel tubes and oval tubes are of 1.2MM to 1.6MM thickness. These materials' thicknesses ensure the bars are rigid and strong to maintain constant geometry at all times, yet safe enough to crumble during an impact.
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