Aluminium Alloy 5754 - H114 - Quintet Pattern Tread Plates
"Our quintet pattern/5 bar tread plate in 5754 grade Aluminium is suitable for marine applications where a combination of strength and corrosion resistance to sea water requirement is a priority. This high strength aluminium alloy is tough, good for welding thus making it perfect for flooring applications. Easy to clean, with good slip resistance it also has a decorative industrial appearance.
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https://www.dinco.ae/aluminium....-checkered-plates/al