巴基斯坦采购需求：高压氧舱、高压氧舱、病人监护仪、超声波、AED、呼吸机

I'm looking to source electric wheelchairs in a sleek black color. Could you provide me with details on your available models, including specifications and pricing? I'm particularly interested in features such as battery life, weight capacity, and any additional options like adjustable seating or portability. Additionally, please let me know about your production capacity and lead times, as I'm aiming to place a bulk order soon. If you have any certifications or quality assurance processes in place, that info would be greatly appreciated too. Looking forward to your prompt response!