孟加拉采购需求：超低温制冷机、氦制冷机、液化装置、氦气提取装置、氢气液化装置、低温空分装置

I'm currently on the lookout for a range of products that your factory might offer. It would be great if you could send me some detailed catalogs or descriptions of what you have available. Specifically, I'm interested in understanding your product specifications, pricing, and any bulk order options you may provide. Also, it'd be helpful to know about your lead times and minimum order quantities. If you have any new or trending items, I'd love to hear about those as well. Photos or samples could also be very useful in helping me make decisions. Let's see if we can find some great products to work together on. Looking forward to your detailed response!