新加坡采购需求：镀锌钢卷、彩涂钢卷、彩涂钢卷、H型钢、钢筋、角钢

We are in urgent need of several seamless carbon iron pipes and related components for a critical project. Specifically, we're looking for various diameters of pipes along with suitable flanges that conform to relevant standards. Additionally, we require a plate of a specific thickness. Please provide us with your best quotes for these items. Moreover, it would be helpful if you could send over any relevant product catalogs to assist us in making a timely decision. Given the urgency of our project timeline, your prompt response would be greatly appreciated, as we aim to move forward swiftly. Thank you for your cooperation!