1. We are the factory for refrigerantion equipment with more than 16 year's experience,so we can do video call to know more about our products and factory.2.Our price is reasonable.We are not the bottom price, not the most expensive price. Our price mostly based on material and technology. We welcome our customer to shop around and compare price with technical details. 3.Proffesional sales team and the best after sales service. Our sales not just work in front of the computer, we are familiar with each part of the machine ,so once have any problems,we repond fast.4. We test every machine before leaving factory, provding pictures and video. 5.Offer customized service, MOQ is 1 unit