英国采购需求：工业计算机制造商，坚固型计算机制造商

I'm interested in exploring the wholesale pricing for bulk purchases from your factory, specifically for a quantity of 15 units. Could you please provide detailed pricing information, including any available discounts or special offers for larger orders? Additionally, if there are any minimum order requirements or shipping options to consider, I would appreciate that info as well. Also, I would like to understand the lead time for fulfillment of this order, including production and delivery timelines. This will help us plan our inventory and logistics more effectively. If possible, could you provide a breakdown of costs, including base price, shipping, and any additional fees? Looking forward to your prompt response!