沙特阿拉伯采购需求：铝棒，铝板，铝片，铝排，铝管，铝型材

I'm looking to source aluminum sheets for an upcoming project. Specifically, I need detailed information on the available specifications, including thickness, width, and length options. Additionally, it would be helpful to know about the grades of aluminum you offer and their respective properties. Could you also provide me with your pricing structure based on different order quantities? I'm interested in any bulk discounts or special offers you might have. Lastly, please include your lead times for production and shipping, so I can plan accordingly. Thank you!