美国采购需求：d3系列

I'm reaching out to inquire about your pricing for the products we are considering. Could you please provide a detailed quotation? We're particularly interested in the costs associated with different order quantities and any discounts you might offer for bulk purchases. Additionally, if there are any specific terms and conditions we should be aware of, including shipping options and delivery timelines, that would be great to know. We're looking to make a decision soon, so a prompt response would be appreciated. Thank you!