美国采购需求：手持式挤出机

I hope you're doing well. I need to order another unit as the one I purchased earlier started to smoke and the digital display has been glitching. It's crucial for my ongoing project that I have a reliable product. Can I send the faulty unit back for repairs? Also, I'd like to place an order for a new one as soon as possible. Your prompt response would be greatly appreciated, as I need to keep things moving smoothly. Thanks!