美国采购需求：铸造、砂型铸造、铸铁厂、金门、铸铁、大门五金

I'm reaching out to inquire about a specific product we're interested in procuring. We need bars that measure 5 inches in length along with a base that is 1-3/8 inches in size. The total quantity required for this order is 2000 units. It's essential for us to get accurate specifications and timelines for delivery, so please provide any necessary details regarding manufacturing capabilities. Additionally, if there are any variations or options available for this product, I'd love to hear about those as well. Competitive pricing would be a significant factor in our decision-making, so please include any quotes or pricing tiers you might offer for bulk orders. Looking forward to your prompt response as we want to move forward quickly.