南非采购需求：洗车机，全自动洗车机，自动洗车机，自动洗车，单臂洗车机，非接触式洗车设备

I'm looking for a high-quality undercarriage machine cleaner, specifically a shampoo that effectively removes dirt and debris without damaging the surface. It's crucial that the product I choose provides excellent cleaning results and is safe for all types of undercarriage materials. Additionally, I'd like to know about the product's packaging options, pricing details, and any bulk purchase discounts available. It would be great if you could also provide information on the availability of samples for testing purposes. Looking forward to your prompt response!