南非采购需求：煤渣砌块机，水泥砌块机，砌块成型机，砌块生产线，混凝土砌块机，建筑砌块机

I'm interested in understanding the pricing details for block machinery. Could you provide me with a range of costs depending on different specifications or models? It would also be helpful to know what factors might affect the pricing, such as production capacity, technology, and any additional features that could be included. Additionally, if you have any current promotions or bulk purchasing options, please share those as well. I'm looking to make an informed decision soon, so a prompt response would be appreciated. Thanks in advance for your assistance!