Shanli will focus on Hannover exhibition next month to know more about compressed air industry trend in 2017. Expectially about compressed air dryer and purify equipment . In the last year , more and more demand on the air compressor to replace oil to oiless  , and for air dryer require to use friendly refrigerant and more efficiency heat exchanger . Shanli to meet this trend demand , have developed the latest plate-fin high efficiency heat exchanger refrigerated air dryer and will replace all refrigerated air dryers with friendly refrigerant like R134A , R407C and so on . Shanli is trying to lead Chinese air dryer or wold  to protect evironment and save energy .