美国采购需求：制氧机、制氧机、病人监护仪、中央监护系统、脉搏血氧仪、白细胞分析仪

I'm reaching out to inquire about your oxygen concentrators suitable for use in EWOT systems. Specifically, I'm interested in the models with a 10L capacity. I would like to know more about which of your products might be better suited for high-pressure applications, as well as any differences in performance and efficiency. Additionally, I would appreciate it if you could provide detailed pricing information for these models. It would be helpful to understand any bulk purchase discounts or lead times for delivery. Looking forward to your prompt response with the requested details. Thank you!