乌干达采购需求：便桶椅、马桶椅、便携式便桶、淋浴椅、马桶坐便椅、便桶马桶

I'm interested in understanding the pricing structure for your range of wheelchairs. Specifically, could you provide details on the various models you offer, including their features and any bulk purchasing options available? Additionally, if there are any ongoing promotions or discounts that might be applicable, please let me know. I'm looking to compare prices and features effectively, so any catalog or pricing sheet you can share would be greatly appreciated. Thank you!