沙特阿拉伯采购需求：型钢、金属梁、结构钢、钢型材、钢托梁、钢柱

I'm reaching out to inquire about H beams for an upcoming project we are working on. I'd like to know about the specifications you offer, including available sizes, weight capacities, and any relevant certifications. It's essential for us to understand the quality and compliance of the materials you provide. Additionally, please share your pricing details, bulk order discounts, and lead times for delivery. We are looking to establish a long-term partnership, so information about your production capacity and any minimum order requirements would also be helpful. Thank you!