l SHL series and SHR serics used together as the proportion of 1:2,1:3 you can use them with the self combination as you can . The usage of the combination can be widely used as process of mixing,drying and colouring of various plastics, l It can make the mixer materials cooled fast in order to get rid of remaininggases in heating mixed materials for the materias storage,transfer and follow-up process well. l It has features of advanced design,easy operation,safe and reliable property,high efficiency,low energy consumption,low noise and corrosion resistance.