美国采购需求：制氧机，便携式制氧机，制氧机，便携式制氧机，呼吸制氧机，折叠代步车

I'm looking to explore options for electric wheelchairs that can meet a range of user needs. Ideally, I need products that are not only comfortable and user-friendly but also offer features like adjustable seating, a long battery life, and reliable safety mechanisms. It would be great to get more details on dimensions, weight capacity, and any customization options available. Additionally, please let me know about the pricing, MOQ, and lead times for delivery. I'm particularly interested in understanding the warranty terms and after-sales support. If you have brochures or catalogs showcasing your electric wheelchair models, that would be helpful as well. Looking forward to your response with the relevant information so we can potentially move forward!