He Yida-good after-sales service, first-class product quality!
We have cooperated with Heyida Heat Exchange Equipment Factory for many years. Their product performance is very good. Once they entered a batch of air-cooled oil cooler . There is a small problem. A phone call will be made in less than 2 hours. Immediately arrange the technology to deal with, the service is very good. So I recognize the products of Heyida Heat Exchange Equipment Factory and trust their service.