赞比亚采购需求：蜗轮蜗杆系统、蜗轮蜗杆规格、蜗轮蜗杆传动、蜗轮蜗杆电机、蜗轮蜗杆传动比、蜗轮蜗杆组件

I'm interested in purchasing one of your machines and would like to know the pricing details. Could you please provide me with the cost, including any bulk order discounts or special offers you might have? Additionally, I'd appreciate it if you could outline the ordering process. Specifically, I'd like to know about payment methods, shipping options, and expected delivery times. This information will help me evaluate the next steps in our potential partnership.