哈萨克斯坦采购需求：散热器和油冷却器

I'm reaching out to inquire about the availability and pricing for a specific radiator that I need. I'm looking to purchase 4 units of this particular model. If you could provide me with the details regarding the current stock levels, lead time for delivery, and any volume discounts that might be available, it would be greatly appreciated. Additionally, please let me know if there are any warranties or after-sales support options included with the order. I'm eager to move forward as soon as I have the necessary information, so a prompt response would be fantastic. Thanks in advance for your assistance!