Jiangsu Techange Environmental Sci-Tech Co., Ltd. was founded in October 2008, specialized in waste water treatment machinery exportation from 2009. We are a professional manufacturer and designer in waste water treatment machineries in Yangzhou, Jiangsu, China. The company focused on machineries such as Volute type sludge treatment equipment , Belt filter press, Mechanical bar screens( Coarse screen, Fine screen, Drum screen , Drum filter ), Automatic sand washer-classifier, Polymer dosing machine, Screw conveyers, DAF, Sand - grit removal etc.We have hundreds cases in China and have been exported to more than 20 countries.Warmly welcome customer & friends to come to our factory , Hope to cooperate & progress together .