AITCOOL INC.,founded in 2007,is a professional national High-Tech enterprise,specializing in researching,developing and manufacturing refrigeration tools for HVAC/R,with an annual capacity of 30,000 refrigerant recovery machines and 200,000 rotary-vane vacuum pumps at present.AITCOOL has the most professional mechanical, electrical, refrigerating senior engineers. In March 2008,AITCOOL achieved the invention patent of refrigerant recovery machine; In October 2008,our refrigerant recovery machine project was approved by Ministry of national science and technique. In October 2010,AITCOOL was honored as national High-Tech enterprise; In September 2011,Our automatic refrigerant recovery machine project was approved by National Economic Commission. With the high quality and advanced technology,the joint efforts of all our colleagues,which guarantee AITCOOL healthy development over a long period,All products have obtained china patents and got the European CE, American CSA certificate,etc.,and also achieved ISO9001 certificate, exported to more than forty countries,including USA,South America,EU, Australia,Southeast Asia,Middle East,Japan,etc..our products with high quality and competitive price is no doubt your best choice.