孟加拉采购需求：定制氦制冷系统、氦液化系统、定制制冷解决方案、低温氦系统、低温制冷系统、氦冷却系统

I'm reaching out to gather more detailed information about your products that are approximately one year old. We're particularly interested in understanding their specifications, availability, and any variations that might be offered. If you have product catalogs or any relevant documents, please send them our way. It would be great to know about any updates or improvements made to these items over the past year as well. Additionally, it would help if you could provide us with pricing details, minimum order quantities, and lead times for delivery. We're looking to evaluate these products for potential procurement, so any insights you can share would be appreciated. Looking forward to your prompt response!