We are specializing at developing, designing and manufacturing CHANGAN series Industrial exhausting fans, owning one team of high quality designing and after-sale services. Our main products industrial exhausting fan, industrial electric fan, pipe-line exhausting fan have got CCC, GS, CE, UL, CSA, CB, Argentina S-MARK certificates.Insisting on our aim of ?prestige first, quality first and service first?, we are applying ISO9001 certificate. We gain a foothold in China, face the whole countries, and keep the whole countries in view.We will offer our excellent services to our clients in high efficiency and prestige. Looking forward to cooperating with customers both at home and abroad!