美国采购需求：中国双轴拖车，双轴拖车，重型拖车，高容量拖车，耐用双轴拖车，多用途拖车

I'm exploring various options for semi-trailers and would love to get detailed info on your offerings. Specifically, I'm interested in understanding the different types you have available, including any features or customizations that may set them apart in terms of functionality and efficiency. Additionally, it would be great to receive pricing details and any bulk order discounts you might offer. If you have brochures, catalogs, or specifications available, please share those as well. Looking forward to your prompt response so we can discuss further!