美国采购需求：牵引车，重型卡车，载货卡车，乘龙牵引车，多用途拖拉机，拖拉机供应

I hope this message finds you well. I'm interested in understanding your pricing and availability for a range of products. Could you provide me with the details on bulk pricing, lead times, and any discounts for larger orders? Additionally, it would be great to know if you have any special promotions or upcoming stock replenishments. This info will help me make a more informed decision and determine how we can potentially collaborate moving forward. Thanks!