巴基斯坦采购需求：2000w 风力涡轮机，5kw 风力涡轮机，hawt 风力涡轮机，螺旋风力涡轮机，家用风力涡轮机，新型风力涡轮机

I'm looking for pricing information on complete sets of vertical wind turbines with various power outputs. Specifically, I'm interested in one unit each of 5KW, 10KW, and 20KW ON/OFF grid systems. Please provide a detailed quotation that includes any relevant specifications, shipping costs, and estimated delivery times for these units. Additionally, it would be helpful to know about any warranties or after-sales support you offer, as well as the payment terms and conditions. If there are any discounts for bulk orders or additional features available, please include that information as well. Looking forward to your prompt response!