印度采购需求：平衡压力泡沫比例混合系统，连续切割，大华4k球型摄像机，诊断听力计，电动遥控救生圈救援船，体外冲击波

I'm reaching out to inquire about a specific product I'm interested in. I need two units of a model that fits dimensions of 69x69 cm. I'd appreciate it if you could provide me with the pricing details, lead time for delivery, and any available options or variations for this size. Additionally, if there are any bulk order discounts or shipping costs that I should be aware of, please do let me know. Looking forward to your prompt response so we can move forward efficiently. Thank you!