卡塔尔采购需求：低温容器，液氮冷冻机，不锈钢液氮容器，不锈钢液氮罐，液氮钢瓶，液氮杜瓦瓶

We are looking for a reliable Liquid Nitrogen Bio Refrigerator designed specifically for the storage of 2 ml tubes, cassettes, and blood bags. It's essential that the unit maintains optimal temperatures and ensures the safety of stored samples. Could you provide us with your available models, specifications, and pricing? Additionally, any information on lead times for delivery and warranty options would be greatly appreciated. Looking forward to your prompt response!